Sublingual immunotherapy (SLIT) or "allergy drops" is a convenient method of allergic desensitization that is done in the comfort of the patient's own home. Small doses of allergens are placed under the patient's tongue once daily as a method to boost tolerance and reduce allergic symptoms. Each patient's treatment vial is tailored individually to their specific allergens.
While allergy shots have been used in the United States for over 100 years, sublingual immunotherapy has been used successfully in Europe since the 1980s. It has been recently effectively introduced to the U.S. The drops work in the same desensitizing manner as injections, providing the convenience of administration at home and not in our office
The build-up of sublingual immunotherapy is done over the course of one month. Treatment is then continued and recommended daily for a few years.
Just as with subcutaneous immunotherapy (allergy shots), allergy drops can be given to desensitize both adults and children. Treatment is usually not started until at least age five.