Shapley's Original M-T-G has been providing quick and effective relief from bacterial & fungal skin problems since 1938! M-T-G stands for Mane-Tail- Groom as this versatile product works wonders in all these areas. Equine skin problems including Rain Rot, Scratches, Girth Itch respond quickly to this easy to use formula. Rub a small amount of MTG into your horse's mane or tail to increase hair growth. In dogs, Original M-T-G treats hot spots and other dermatitis including itchy, dry skin. No need to rinse or wash off in between applications.