Asthma, allergic rhinitis: useless anti-mite covers?

August2nd,2010

Asthma, allergic rhinitis, anti-mite covers on mattresses and placed the pillows would prove clinically ineffective in the prevention of asthma and allergic rhinitis.

Mites are the essential and ubiquitous allergen. They are involved in allergic skin phenomena, ENT and bronchial. People allergic to dust mites must protect themselves. Far from being infallible, certain eviction actions must be implemented: anti-mite covers to place on the mattress, duvet and pillow, regular washing of bedding, removal of “dust traps” (carpet, plush curtains, carpets), no pet hair, use of product miticide, escape exposure to secondhand smoke, not to mention the general dietary measures.

But this list covers the use of anti-mite may soon disappear after the results of two studies suggesting their lack of effectiveness.

The first focused on 1200 adults with asthma divided into two groups according to whether they used covers. The morning peak expiratory flow (PEF) was determined regularly and the number of patients could reduce their dose of inhaled corticosteroid was recorded in the 6th and 12th month. The concentration of dust mites in mattresses was also analyzed.

The authors note as well that the concentration of mites was significantly lower in patients using bedding covers in the control group at six months, but not at 12 months. The DEP has improved similarly in both groups. And finally, regarding the reduction or discontinuation of corticosteroids, again, no difference was noted.

Finally, as an intervention alone, anti-mite covers seem ineffective in adults with asthma.

The second study was conducted among 230 patients with allergic rhinitis and sensitive to dust mites. During the 12 months of follow-up, the severity of rhinitis was measured and compared to the concentration of mite mattress. The results show that the concentration was actually decreased in the patient environment equipped with covers, compared to control subjects. But despite the reduction of mite allergen exposure related to the use of covers, this measure alone does not improve symptoms of patients.

Pending further evidence to this effect, we can advise patients to carefully observe all preventive measures avoidance of dust mites, and not confined to mere compliance with one of them.

Mites: but who are these little creatures allergens?

July30th,2010

Mite allergy is most prevalent. At the slightest contact, allergic individuals are most often an attack of asthma or rhinitis. But who are these strange creatures? How do they develop? What other allergic reactions caused by mites?

1. Mite allergy is very common

They belong to the family of arthropods. The house dust mite or mite pyroglyphides are responsible for immediate allergic reactions in susceptible individuals. And people are allergic to these little animals are particularly numerous. The only solution to completely avoid contact with them.

It speaks of allergy to mites, but be aware that allergens are mainly contained in their droppings.

2. Mites: Allergen widespread

The mites are widely present in house dust. Their development depends on temperature and humidity environment. Thus, they proliferate further at a temperature of 25 ° C and when the humidity is between 60 and 80%. The bathroom is thus part locations typically favor the development of mites.

But the mattresses, blankets, duvets and pillows are also places for their development.Especially as the mites feed on scales of our skin that we lose permanently because of constant renewal of our skin cells.

In addition to bedding, they willingly invest sofas, carpets and rugs, stuffed animals, etc..
Note that they disappear at high altitude. From 1,500 m, they are growing.

3. When allergy occurs

Allergy Air: When the mites penetrate the airways, they cause rhinitis or asthma.Both events are sometimes associated with conjunctivitis.
Allergy Skin: contact with mites causes skin eczema.

Food allergy: less frequent and more recently described, results from the ingestion of food contaminated with mites. The contamination is most often of poor preservation of foods and ingredients. Manifestations of allergy are characterized by attacks of asthma, which can lead to anaphylactic shock, and angioneurotic edema (subcutaneous edema, appearing under the skin).

4. Beware of cross-allergy

Allergy sufferers often react to several types of allergens. This is called cross allergies. Regarding allergic to dust mites, they may also have food allergies to snails and shrimp.

Allergies Anti-inflammatory skin

July26th,2010

The gels and creams, anti-inflammatory struggling against some pain, but can cause skin allergies.

Many gels and creams, anti-inflammatory drugs are marketed in France. Some of them have been studies that have shown some effectiveness in the fight against the local pain. They are used in tendonitis of the upper and lower and smaller injuries, including sprains. This is the case of diclofenac (Flector gel ° Voltaren Emulgel ° ° Xenides gel) ibuprofen (° Dolga cream, gel Ibutop °, ° Intralgis gel Syntofène ° gel, Tiburon ° frost), ketoprofen (Ketoprofen RPG ° gel, gel Ketum °, ° Profénid gel Topfen ° frost) and piroxicam (gelden ° frost).

The bufexamac (° Calmaderm cream, cream Parfenac °) and enoxolone (Lelong Irritant · ointment and cream PO 12 °) are also anti-inflammatory, but they are used in the treatment of pruritus (like scratching) when the skin is inflamed.
Some of these drugs are reimbursed by health insurance, but all can be purchased without a prescription from the pharmacist.

1. General side effects are very rare

The amount of drug that enters the bloodstream is very low. And therefore, the risk of systemic adverse effects (eg, stomach ulcer, generalized rash) is less than the risk we take with the same drug, swallowed as a tablet or capsule. However, some (rare) cases of renal disease, asthma or gastrointestinal bleeding have been described after application of an anti-inflammatory effects on the skin. Similarly, some cases of poisoning have been described after application of salicylic acid ointment on skin lesions of psoriasis extended.

2. Eczema in primary

Observations of adverse reactions to anti-inflammatory are regularly published. Ketoprofen (Ketoprofen gel RPG °, ° Ketum gel Profénid ° gel Topfen ° frost) and the drug most often cited.It can cause eczema, which starts at the point where the gel was passed over the skin. The lesions may not appear until the end of treatment (up to 20 days later). The disturbances lasted two weeks on average, and are sometimes severe, even requiring hospitalization.

Relatively many cases of eczema have also been observed with bufexamac (° Calmaderm cream, cream Parfenac °), so that eczema has become one of his cons-official information. But cases have also been reported with all other anti-inflammatory drugs used topically on the skin.

3. Beware of the sun, occlusive dressings, and a history of eczema to anti-inflammatory

The detailed study of some cases has shown the existence of three contributing factors: exposure to sunlight, occlusive dressings, and a history of eczema to anti-inflammatory. In many cases, it is clear that the sun or UV light (including UVA tanning lamps) have been a triggering factor of eczema, with the drug. For example in the case of a woman whose eczema stopped exactly at the place was sheltered from the sun by his sock. You should not use creams or gels, anti-inflammatories in dressings, which increase the penetration of the product, but also the risk of skin irritation and adverse. For the same reason, it is inappropriate to use against the anti-inflammatory on skin irritated, injured or suffering from dermatitis (skin disease).Finally, if anyone has ever had an allergic reaction due to anti-inflammatory, the risk of eczema is increased when taking other anti-inflammatory drug (whether orally or in local form), becausethe chemical relationship of these drugs.

4. It is not always necessary to consult

In case of injury and giving red urge to scratch, appearing in the place where you recently brought a gel or cream, there is every chance that both of eczema. If it is narrow and somewhat embarrassing, but it is not necessarily essential to consult your doctor. It is otherwise if he grows up one day to another, and if the urge to scratch is really painful.

But in all cases, carefully note the name of the drug in question, and do not forget to tell your doctor and pharmacist. They are not too many two to help you think on another occasion, to avoid the same experience is repeated!

Latex allergies are increasing

July26th,2010

The use of latex is very widespread. Think about that in case of allergies and take stock in doubt.

The latex (rubber harvested from rubber trees) is a compound found in new materials such as erasers, glue for envelopes, adhesives, rubber gloves and medical gloves, rubber mattresses,nipples, pacifiers, flippers and snorkels, bathing caps, camera viewfinders, binoculars, some rain gear and some extensive tissue (except Lycra) and condoms … This long list shows that we are all exposed to latex which poses a problem because more and more people are allergic to this material.

1. Skin reactions and respiratory

This allergy is mainly respiratory, speaking by rhinitis, sinusitis or asthma. It may also involve the skin with eczematous dermatitis and urticaria. The more serious forms (angioedema and anaphylactic shock) are rare. The most misleading is that some foods may induce cross-allergy with latex proteins: the case of avocados, chestnuts, bananas and kiwi.

2. Three risk groups

Three groups at risk are individualized.
Health professionals first, because of the extensive use of latex gloves. The allergy that affects 10% of them can be prevented by the use of gloves PVC or synthetic rubber.
Children who have been made many times and have thus been frequently exposed to the gloves of their surgeons, the rate of awareness can then climb to 55%.
The last atopic (those with a predisposition to the field asthma, rhinitis, hives, eczema) that constitute the largest group.

3. Three risk groups

Three groups at risk are individualized.
Health professionals first, because of the extensive use of latex gloves. The allergy that affects 10% of them can be prevented by the use of gloves PVC or synthetic rubber.
Children who have been made many times and have thus been frequently exposed to the gloves of their surgeons, the rate of awareness can then climb to 55%.
The last atopic (those with a predisposition to the field asthma, rhinitis, hives, eczema) that constitute the largest group.

Alert grass!

July26th,2010

The allergic risk is high or very high throughout France because of grass pollen whose airborne concentrations are very high in the late spring 2000.

Colds fever (allergic rhinitis), conjunctivitis, asthma attacks may be due to different pollens invading the air in the spring and early summer. In mid-June the allergic risk is high almost everywhere in France largely because of grass pollen. Grasses (Latin Gramen, herbs) are represented by the canary, oats, wheat, quackgrass, orchardgrass, timothy, ryegrass, barley, bluegrass, rye, and vetiver foxtail best known for.

1. A tour of France’s allergy risk

In Paris and in the North-East (Amiens, Nancy) the risk is very high. It is medium in Lille and Strasbourg (mulberry pollens dominate).

A Tour and in the western region (Rennes, Nantes, La Rochelle, Pontivy), grasses dominate everywhere with a high risk of allergy or high. Other pollens are found as cypress (which dominates in Brest) or sorrel.

The allergic risk is high throughout the South-West (Bordeaux, Toulouse, Cambo-les-Bains Font Romeu) and again because of the grasses, but also of oak pollen.

Variety characterizes the South East with the olive tree overlooking Nice and Ajaccio, the oak that finishes first in Aix, Marseille and Toulon. Grasses are usually in third position and the allergic risk is very high in Nice and Briançon, high in Toulon Ajaccio, medium to Aix and Marseilles.

The records of air concentration in grasses are held in Central East in Montluçon and Chalon-sur-Saone, but also in Lyon, Dijon, Annecy, Chambéry, Aurillac and the Bourboule. The allergic risk is high everywhere except in Chambery and The Bourboule.

2. Always note the date of onset of allergies

As you can see, this is now possible, thanks to the National Network for Monitoring Aerobiological (NGIK), to follow week after week, the evolution of pollen France. It is therefore essential to note on your calendar date of onset of allergies and the place. This will guide the investigation of your allergist who will refer to the base of NGIK. If you already know the pollen to which you are sensitive, please visit the site regularly NGIK so you can take control of your prejudice. It will then continue to take your property or your other antihistamine treatments and avoid exposing yourself too much, especially by rural out too long.

Namely, the allergic risk is always higher with the arrival of warm weather, because the rain is gone to clean up the sky and the air we breathe by wrestling him to the ground pollen, dust and pollutants. It is also important to know that the more you begin your allergy treatment, the sooner you will be protected from severe reactions. While covered, you’ll have more opportunity to wander more freely.

Baby Colic: perhaps an allergy to cow’s milk?

July26th,2010

When infants writhing in pain after their bottle, this may be an allergy to cow’s milk proteins.

Colic, which are intestinal pain, are often very severe in infants. They are accompanied home and regurgitation, often making the diagnosis of gastroesophageal reflux. Number of babies are well dressed for prescriptions for anti-reflux are not always effective. Their pain continues, often late into the night after the time of the last bottle, and the impact on family life can be very important. In these cases, we must also consider the possibility of an allergy to cow’s milk.

This hypothesis has been confirmed in a study that showed that colic stopped at the establishment of a regime that excludes any cow’s milk protein hydrolyzate and all of these proteins. The 19 children in this series all had reflux associated with their intestinal pain.

1. Test diets without cow milk protein

This study confirms the role of allergy to cow’s milk protein in infant colic and in the genesis of many of reflux erroneously treated by prokinetic, while a simple system without the allergen in question would suffice. For this purpose the hypoallergenic milk (often labeled HA) may be prescribed or hydrolyzed proteins (type Alfar), and even soy milk (type Gallia Soja, Soja Modilac, etc..) In case of persistent signs of potential allergy (which is very possible for even protein hydrolysates may be some residual allergenic cow’s milk), use-based amino acid synthesis (the building blocks of proteins) can be considered as Neocate. Still, if these treatments must be developed, it will become necessary as costs decline so as to benefit the greatest number.

Allergy to milk proteins: a disappearance under review

July26th,2010

Allergy to milk proteins mainly concerns children up to age 2 years. Indeed, it then disappears between 2 and 3 years to become rare beyond this age. But today, a study suggests that half of those who are allergic, the remaining at least until the age of 10 years.

1. Focus: intolerance or milk allergy?

Even if one speaks of cow’s milk allergy, you should know that this is mostly an intolerance to lactose, the only carbohydrate found in milk and gives it its slightly sweet flavor . This intolerance is due to low activity of lactase (an enzyme whose role is to break down lactose into two to allow its assimilation) and cause digestive problems after drinking milk. These issues can nonetheless eat but in small quantities or integrated into the preparations.

However, the true “allergy” is due to milk protein. Note that these children are often also allergic to other proteins such as those contained in goat milk, soy, beef or cereals. This allergy affects 2-3% of children under 2 years and then gradually disappears, it persists beyond 3 years is generally scarce.

2. An allergy more persistent than expected

But today, a study suggests that allergy to milk protein does not disappear really. In re-crawl the age of 10 children who were allergic in their infancy, it appears that the majority of them actually become tolerant, at least small amounts of milk. However, if ingested in larger quantities, symptoms appear in 45% of cases, against 15% in the general population. Moreover, these children are three to four times more affected by asthma, allergic rhinitis (hay fever), dermatitis (skin inflammation), or recurrent otitis media.

Thus, half of these children, the loss of allergy to proteins is only partial, at least until the age of 10 years. These findings suggest additional precautions and longer term, particularly in the face of dairy products, it is useless to these children, while learning to handle small quantities.

Henna Tattoos: risk of allergy for life!

July23rd,2010

Caution when considering a henna tattoo. Use ancestral natural dyeing, nothing is certain! A product of very common use in industry is often added to henna.This is likely to cause allergies for life.

The henna tattoos semi-permanent, that is to say, expected to be cleared within 15 days of its making, involve a risk of eczema delayed. The tattooed area becomes swollen, reddened, itchy appear and contact dermatitis has taken the shape of the pattern initially tattooed. The most annoying is that this allergy can lead to a hyper-awareness of life.

1. LEADER: paraphenylene diamine or PPD

This reaction is due to a coloring agent, the paraphenylene diamine (PPD), which is added to henna to enhance the color and its attachment to the skin. The problem is that it is used at concentrations too high. Indeed, the substance commonly used in industry as a textile dye or hair dye is usually well tolerated at a maximum rate of 6%. Thus, once aware of an excess of PPD, you become allergic to all dyes containing the product, even at a concentration permitted and even some clothes stained with this dye, like jeans. Eczema reappeared every new contact.

2. In practice

Beware of tattoos to very dark colors. The normal color of henna tattoo varies from brown to orange. Moreover, the heat and humidity the blurring rapidly.

Learn about the composition of henna and more specifically on its content of PPD, the rate should be less than or equal to 6%. It is also interesting to ask the name and batch number of the product used, very useful information in cases of awareness. The tattooist is rarely able to provide such data, it is better to abstain.

Obviously, these tattoos should never be performed on children!

Pollen allergy: late season and virulent

July23rd,2010

This year the attack pollen (pollen) was virulent. The later than usual and stronger, the French have largely suffered from stigma and allergic reactions to pollen allergy.

The pollen season starts with spring, bringing with it the risk of allergies. But this year, hay fever has been particularly violent. Pollen allergy was reported later than usual and more strongly. For example, in the Paris area allergists have never seen birch pollen as virulent in March and April.Thus, while in early summer the French have generally ended with the stigma allergy warning, which persisted in early July just beginning to fade, especially for grasses.

1. The weather is guilty

The fault is the weather. A rainy month of May, immediately followed by a period of extreme heat, has proved particularly dangerous for sensitive people. Indeed, atmospheric moisture and ozone pollution linked to the heat form the perfect cocktail allergic.

2. Tips for allergy

Nose caught, red and watery eyes, sneezing, no need to take refuge in cities. The most allergenic pollen, having the distinction of being extremely small, easily invade the cities. The mountain is not the solution, because with the high temperatures early in the early summer, pollens have spread to 1,800 meters. The best way to prevent asthma attacks remains in exile along the sea coast is the only region almost untouched.

But regardless of place of residence, wash your hair every night so as not to disperse the pollen in your bed. Avoid walking in the countryside, and of course, carefully follow your treatment.

The magnitude of hay fever has increased in recent years so that this disease has become a major problem. With a frequency multiplied by four in 30 years, is now nearly 40% of the population is concerned.

Food Allergies: labeling refine!

July23rd,2010

Food allergies are increasing, and only the labeling of products allows the party to limit risks. It is necessary to enhance consumer information stating more potential allergens present in food.

Food allergies affect 3.2% of French people and especially children (8%). Prevention is particularly difficult and should start in early childhood when the child is simply awareness. A food labeling detailing the presence of potentially allergenic ingredients represents substantial assistance. But then, next to the most frequently implicated allergens: eggs (34%), peanuts and walnuts (25%), cow’s milk (8%) and fish (5%), the list is very long .

The labeling of food products is regulated by EU directives. They have recently been modified, but the French Agency for Food Safety (AFSSA) proposes to add to the list of allergens to the mandatory three additional products: lupine, mustard and celery.

Indeed, the 25% rule has been abolished (the previous reference to an ingredient in less than 25% of the final product was not mandatory), but labeling of sauces and mustards representing less than 5% of finished products, spices and less than 2% of the ingredients called Seasonings and transfer aids, is still not mandatory.

However, many foods, including handicrafts, have compositions which remain unclear. Indeed, the regulations concerning products intentionally added to food manufacturers.

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