I had a huge flea problem this year. A couple of my indoor cats got severe demitis as a result. I took them to the vet but the medicine didn't help. I saw this and thought I'd try it. First I got the fleas in the house elminated using, bombs, spray, and topicals. Then I used this to help speed in healing the dermitis. It was easy to use, and it worked.Plan on keeping this on hand for the future.