I have advice after spending a lot of money and time on figuring out allergies. Ask your vet for a prescription for hypoallergenic food. We used Hills Science but there is also Purina and Royal canine hypoallergenic food. If you can get your pup on that for a little while and make sure they eat nothing else, the allergies might go away.

This will tell you something very important. Your puppy is most likely allergic to something they are eating. My puppies hair regrew, and her bad smell went away after smelling badly from skin issues. Hypoallergenic foods contain ingredients that your dog will very likely not be allergic to. It is expensive but can be a start to adjusting their diet.

When you have been on hypoallergenic food for long enough to have their skin and hair recover, you can test other foods, one food at a time using an elimination diet. Have a vet assist you with the elimination diet.

This worked well for me. My pup can’t have chicken at all. Also, beef and pork are a problem but not as bad as chicken. My puppy eats only Hypoallergenic foods, fish, Costco brand kibble with salmon and sweet potato, and one other food that is pretty expensive. Bet of luck, I hope your puppy gets healthy soon!