The vet thought that it was fleas at first
He had been getting regular flea treatment so I didn't think it was that. She then said that it could be allergies. She gave me 1/4 tablets to give him for 2 weeks and they worked
but just noticed about a week ago that they are back with a vengeance. A lady at the dog park said tea tree oil. I have just recently gotten a different type of food and shampoo. Hoping that the changes help! Thank you for your advice and I will keep YT posted.