All about allergy

Immunotherapy (allergy shots) is an alternative if medical therapy is not helpful. Allergy shots do not always help, but they can improve symptoms in many people. They are usually given by an allergist.
Immunotherapy consists of a series of injections over several months. The shots contain very small amounts of the antigen causing the hay fever reaction. The idea is to minimize your reaction to the allergen by slowly decreasing your sensitivity to it in a controlled setting, which is usually the allergist’s office.
Allergy shots do not always work, but in general hay fever responds well to this treatment.
Severe adverse effects are uncommon.
Your immune system changes over time. Sometimes your body naturally lowers its immune reaction to allergens.

Allergy journal

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