You can use the antibiotic Tomorrow , or I prefer to use the 1/2 and 1/2 mixture of triple antibiotic cream and athlete's foot cream. You don't want to use anything caustic or something that will kill off healthy tissue like thrush buster, coppertox, because you will end up making the problem worse-it will take care of the thrush, but will also kill the healthy tissue. I also use as a prophylactic a spray of 1 oz Lysol in a quart of water. Spray on the feet after you clean them out, especially in the frog sulcus.(sp?). Also spray your hoof pick after you clean out the infected foot so as not to spread the thrush.