Hoof thrush remedy with no formaldehyde. Our hoof thrush remedy offers a highly effective treatment for thrush and white line disease—without using formaldehyde. Kills and prevents the bacteria and fungi that cause thrush and white line disease. Promotes normal healing and does not kill live tissue. Squeeze applicator is specially designed to reach deep into the frog where thrush organisms breed. Clear formula does not sting, stain, or dry out hoof Eliminates the foul odor associated with embedded bacteria and fungi.