The pathomechanism of ASIT involves a modulation of a Th2 to a Th1 cell response and changes the immune system so that an allergic reaction of the organism does not occur.
Allergic diseases cannot be cured, but in 70-80% of cases they can be well controlled with the help of allergen-specific immunotherapy. In some cases, there is a marked improvement after only a few weeks, but in other cases it takes 10 months or longer before a clinical improvement is visible. If there is a good response to the therapy, it is strongly recommended that it be continued for life. Immunotherapy should therefore be continued even after symptoms have improved or become symptom-free.