Does anyone know what causes small scabs to form at the base of dogs hair. My Golden Retriever keeps getting them. I have to shave the hair around them and eventually the scab falls off. If I leave them they don't seem to heal and just keep crusting up until a hot spot forms. Do you think it could be food allergy. He only gets chicken or chicken frames with a small amount of good quality dog biscuits. Very rarely, if I have no fresh meat, he will have that dog food that comes in a big sausage shape in the supermarket but that is ony once a fortnight or less. He is prone to skin allergies. Any one had the same problem?