What is the cause of using allergy shots?

Allergy shot procedure is comprised of a series of injections. It increases the tolerance to the substances (allergens) that provoke allergy symptoms. In some cases allergies have been cured, but mostly they get reduced. Most people chose allergy shots because for them after experiencing that oral medications for allergies are not enough to treat their irritation. Some people take allergy shots for dealing with asthma and sinus infections. Allergy shots are particularly good in dealing with asthma that is caused due to allergic exposure. This kind of asthma is often not cured by oral pills and inhalers. Many patients go for allergy shots for reducing or eliminating the habit of taking oral medications. Some people chose allergy shots because it has less number of side effects than other medications. People get almost cured after 2-3 years of shots. Most patients stop their shots after 5 years since their immune system has already built up that resistance to fight against those allergies. . Allergy shots are also advisable for children and are not as harmful as other medications to cure allergic problems. Women should not start taking allergy shots if they are pregnant.