My terrier pup has red itchy skin which is making him miserable,I’ve had him to the vets and think it could have been caused by a flea bite which the pups skin has reacted to which has caused a viral infection,he’s now on antibiotics,a flea spot on from vets as they said it’s a better one than I was using,I’ve also changed his food this morning to a grain free complete salmon & potato from wainwrights,he was on James well beloved rice & turkey. My dogs sleep on tuffie beds which are cleaned regularly,my other dogs are not itching & they are all treated with virbac spot on & vi