Carr, Day and Martin - Killitch Treatment (500ml): __Licensed and proven to work! Designed to soothe and cure the unfortunate condition of sweet itch. __Apply this unique lotion early in the spring to prevent the condition, and the midges setting in. __Licensed and proven to prevent and treat sweet itch in horses and ponies AVM-GSL licensed product with active ingredient benzyl benzoate in a soothing lotion, specially formulated for horses Guards against the culicoides midge that causes sweet itch Care Medicated Shampoo once a week Visible improvements should be seen within 2 weeks 500ml will last up to 1 month, with regular use Key ingredient: benzyl benzoate