Before I used this shampoo, my cocker pei always wakes me up between 2 am to 4 am from his scratching. I know he was not comfortable either because he sounded like he was grumbling everytime he had to get up to scratch himself. I used this for a month, twice a week and it's day and night. He just feels so much better and not itching every 30 minutes. I give it 4 stars because while applying it on Teddy, I got some suds on my arms and I felt like something burning my skin. It wasn't anything bad because once I rinsed, the burning sensation was gone. It smells good on him and it helps with his skin issues.