title: I've have bad allergies for years. Will allergy shots help relieve my sneezing and sniffling? How do they work?
mesh_terms: D000280:Administration, Inhalation; D000485:Allergens / Q000008:administration & dosage*; D003888:Desensitization, Immunologic / Q000379:methods*; D006634:Histamine H1 Antagonists / Q000008:administration & dosage*; D006801:Humans; D007279:Injections, Subcutaneous; D012221:Rhinitis, Allergic, Perennial / Q000517:prevention & control*
chemical_list: D000485:Allergens; D006634:Histamine H1 Antagonists