Tincture of Arnica for Horses Tendas Tincture of Arnica aids in the treatment of muscle aches to reduce inflammation in horses. This tincture can also be used to aid in the relief of sprains and bruises. Tincture of Arnica can be used as a salve, with poultice, or as a body wash. When using this product, wear protective eyewear and gloves. Ingredients: Arnica Montana 10% by weight, Deionized Water, and Isopropyl Alcohol, Caramel Color Tincture of Arnica Directions for Use: As a Liniment: Rub into desired area until skin is wet and allow to air dry. Repeat for no more than twice in one day. Wash area the following day and reapply as desired. With Poultice: Rub into area where poultice will be applied. Apply poultice over top the wetted area. Wash affected area the following day and repeat as necessary. As a Body Wash: For a soothing equine body wash, pour 2 fluid ounces into the wash bucket along with Giddy-Up Shampoo (sold separately). Add water and bathe horse.