HI! There is nothing like addiction to inhalers.if u need it u should take inhaler.
About desensitization: First of all you need to which allergens r offending you. This is known by allergy
testing.After that a very small dose of allergens is given.This is usually accepted by the body.
Gradually dose is increased and the body learns that this perticular allergen is not harmfuf.If successful there is very good chance of being cured from allergy