My dog has really sensitive skin and was getting red patches after baths no matter what I tried. Regular pet store shampoos were making it worse and even the expensive ones didn't help much. Took him to the vet and she said some dogs just react badly to harsh chemicals in most commercial shampoos. Started looking for gentler options and found a very good dog shampoo for sensitive skin at petbayaus.com.au that's specifically made for dogs with allergies. Been using it for about two months now and his skin irritation is completely gone. No more scratching or red spots after bath time. Sometimes you just need products made for specific skin conditions