pet md hot spot treatment for dogs - medicated spray for dogs, cats, and horses with chlorhexidine, ketoconazole, essential fatty acids, aloe and vitamin e - 8 oz pet md pet md medicated spray is an alcohol-free medicated formulation designed for dogs, cats and horses with dermatological conditions that are responsive to chlorhexidine and ketoconazole. it also contains essential fatty acids and vitamin e to nourish the skin and further control irritation.