Asthma and allergic rhinitis: desensitisation takes place under the tongue
Desensitization is an effective treatment for some allergies. But because of its limitations and dangers, a new route has been developed: the sublingual route. Still little known, it has many advantages and very precise.
Desensitization or immunotherapy aims, through the administration of increasing doses of allergen to induce a state of tolerance vis-à-vis the allergen. Specifically, the treatment consists of subcutaneous injection of the allergen to which the patient is sensitized.
This technique has some disadvantages, such as the need to inject the allergen, which is not without risk, or requiring the patient to go to every once in a medical office or hospital, just inBecause reactions may occur during the injection.
Admittedly, this method is very effective, but sometimes dangerous. Thus the occurrence of severe anaphylactic symptoms led to a search of other techniques, including other routes of administration.
In recent years, the sublingual appeared. It consists of placing under the tongue of rapidly increasing quantities of allergen in the form of drops or spray, the tablet is currently under study.Allergen concentrations are much higher than those used in desensitization by injection and the optimal dose is reached quickly (15-20 days).
This new method has proved almost as effective as traditional desensitization. In addition, secondary reactions are very rare, if not low, this treatment can be performed at home.
1. The conditions are strict limitation
- Rhinitis and / or allergic asthma.
- Be sure of the relationship between exposure to the allergen to which you plan to desensitize and symptoms.
- the fact that to effectively reduce the allergen in the environment (crowding).
- Processing single drug ineffective because of the severity of the disease.
- Commitment to the patient a very good adherence to the long-term desensitization. Indeed, the treatment must be continued over several years, three years on average.
Tags: allergic rhinitis, Allergy, asthma, rhinitis