Whether it is possible to get rid of an allergy forever?

In social networks and messengers claim that … 1 … it is possible to recover from an allergy forever. And what actually? 2 Allergy call, as a rule, hypersensibility to influence of some factors of environment. In other words, this condition of an organism when the immune system perceives safe for it irritants (allergens) as threat against which starts developing antibodies. Thus symptoms of this "protection" are very various: from similar to ORVI before reactions menacing to life. The allergy is very widespread: about a third of the population suffers from its these or those forms...