My dog has VERY SEVERE allergies. He sees a specialist several times a year, and without him, I probably wouldn't have him anymore. But the allergies seem to continue to get worse. He often gets skin infections that need antibiotics, which I hate giving him because I know it's not good for him. I had been wanting to detox him, but didn't know how to do it. This book tells you how. I got the book about a month ago and detoxed him. In the book, it says that he would probably develop hot spots - he did, a lot of him (as I said, he has severe allergies & has been on antibiotics a lot, so I wasn't surprised). He also gives the vitamins he should be taking to boost his immune system. I also started giving him some of the vitamins. His hot spots aren't getting infected like they usually do, and after about a week and a half, they have started healing nicely. I don't know if I am completely buying in to the whole homeopathic way, but I do think eating healthy, detoxing, and taking the proper vitamins is very positive. I am hoping that allergy season won't be as severe for my dog this spring and summer.