Hooflex horse thrush remedy kills and prevents bacteria and fungus that cause thrush and white line disease. Hoof Flex Thrush Remedy helps eliminate associated odors and promotes normal healing. Features squeeze applicator specially designed to reach deep into frog where thrush organisms breed. Does not sting or irritate, does not dry out hoof. Non-staining formula. Contains parachlorometaxylenol and aluminum chlorhydroxy allantoinate.