Aunt Jeni's Home Made Allergy Aid for Pets,120 Chewable Tablets The Itch Buster makes your pet more resistant to the most common triggers of allergic reactions Long term relief of allergies naturally, without dependence upon painful shots or harmful steroids. All-natural vitamin and herbal ingredients boost the immune system, calm and sooth the skin. Vitamin C, Quercetin and Burdock Root are natural antihistamines and antioxidants. The family of B-Vitamins, especially Biotin, serves to restore and renew healthy skin.