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The purpose of these manipulations is to develop resistance (tolerance) to allergens in the body. If this treatment is carried out correctly, allergic rhinitis can disappear forever. Starting immunotherapy as early as possible significantly increases the chance of absolute resistance to allergens and thus the result of a complete cure of the disease. In a huge number of patients, this method completely cured allergic rhinitis.

What We Treat
Sildenafil(viagra) drugs should be used during the entire period of exacerbation 3 r. 1 spray per day. The therapeutic effect of using these sprays appears no earlier than five days later (maybe later), so their action is considered more prophylactic than therapeutic.
Typically, drugs in this group are prescribed for the treatment of allergic rhinitis in children or mild rhinitis in adults. As a rule, the course of treatment for allergic rhinitis is at least two to four months, although year-round use of drugs is possible.
I would like to pay special attention to the fairly new drug Nazaval, which is based on plant cellulose. This drug is available in the form of a nasal spray and creates a microfilm on the nasal mucosa, which prevents contact of the mucous membranes with the allergen.
During the period of exacerbation of allergic rhinitis, this spray is practically ineffective, therefore it is recommended for use only as a prophylaxis of the disease. In severe allergic rhinitis, the main drugs of choice are nasal corticosteroids produced in the form of sprays (Benorin, Nazarel, Flixonase, Nasonex, Baconase, Nasobek, Aldecin).