What do you think about AIT ( allergen immunotherapy ) is that effective in treatment of AR or Allergic asthma?

Allergic immunotherappy is very effective. It can prevent progresion of allergic disease from allergic rhinitis to asthma.However the effectivess deped upon length of treatment,dose of allergen.

Antibodies diseases effective

Yes. Only in selective cases of asthma.

Immunotherapy is very effective in preventing allergic asthma attack and also delays of chronic complication

it is effective because it suppresses antibodies causing disesae