Epsom Salt Poultice is a topical gel made with Epsom salt and methyl salicylate in a water soluble base, formulated for external application on horses. It is applied directly to painful or swollen muscles, legs, joints, or areas affected by insect bites, and the treated area can be covered with cotton or a wrap to help it draw and soothe. The same gel can also be packed onto the sole and frog of the hoof to help draw out abscesses or address sole bruising, then covered with a wrap or boot. The formula is designed to soothe without burning or blistering the skin, and is intended to be left in place for a period of time before reapplication as needed. No mixing or assembly is required before use, and the product is intended solely for external application on horses. Consult a veterinarian for persistent or severe swelling, lameness, or infection.