I'm new to this forum and found this thread when searching for information about allergies. I have two puppies. The younger one, a siberian husky mix, had a rash with a few blisters on her belly last week. My mother noticed and told me it looked like a side effect of hookworms. Well, the vet told me that she had hookworms, but we hadn't treated her because she was ill and the vet wanted to give her time to recuperate. After being treated for hookworms, the rash disappeared but now she has been itching chewing around her tail and near both hind legs. I changed the food this week to Eagle Pack. I typically add garlic and brewer's yeast to their food, but had run out of the brewer's yeast for about two weeks. I started the yeast back this week and have been putting aloe vera on her red spots. It seems to be clearing up, but she still seems itchy. Also, just FYI, I put some A&D diaper rash ointment on her when she seems itchy and that seems to soothe the itch. I had another dog that died a few years ago and he suffered with allergies (the vet said he was allergic to fleas) his entire life. I had no idea that diet had such an influence on a pet's health. The vet at that time told me that Purina was fine for my dog. It wasn't until my mother took him in and started giving him brewer's yeast that he started to get better. I am doing things completely different this time with my babies!!