I have a 6 yr old border collie who’s always been prone to sensitive skin and stomach. Ive been managing it for years until about a month ago when he started scratching and hasn’t stopped. We’ve ruled out fleas/mites etc and his diet hasn’t changed, but the scratching is constant and worse at night. I’m currently giving him Piriton at bedtime on the vets advice, but they want to start him on apoquel. Looking at other threads I’m going to do an allergy test on him, but I also want to give him a bath to relieve the itch (and remove the doggy smell he’s developed). Any recommendations would be great. Thanks