Hyposensitisation is the process of making the patient less sensitive to an antigen. The emphasis is on hyposensitisation and not desensitisation. Desensitisation is the total irradiation of sensitivity. That is not always possible. To start hyposensitisation, initially, a probable patient undergoes an allergy skin test.
Doctors test the patient by using intradermal or prick tests.
The patient is given a series of injections to determine the response to an antigen. Allergy is hypersensitiveness to a protein. Doses are increased gradually. The entire duration of immuno therapy can range between 2-5 year period. In the first six months, they will be given an injection once a week.