I found a hot spot the size of a golf ball on Aspen's tail. So I had to shave the area a bit and use some hydrocortizone spray but ran out after 2-3 pumps. So I went to my local Petsmart and looked at their sprays. One of them caught my attention. It's called Vet's Best Natural Formula Hot Spot Spray. Ingredients are tea tree oil, chamomile and aloe vera. This is the second day I've been using it and the hot spot has drastically gone down. Just wanted to share some good info!!!