My cat has cat chin acne. Since the diagnosis by my vet more than two weeks ago, I have been following the vet's instructions - use stainless steel and ceraminc bowls only and keep them squeeky clean, clean the cat's chin twice a day with a dilute hydrogen peroxide solution and apply the bactoderm ointment (5% benzyol peroxide). So far the condition has not improved but gotten worse. More acne spots have appeared, and the affected area seems to be enlarging. I am very concerned. Please advise!