Zymox Topical Spray with Hydrocortisone for dogs and cats provides a natural and effective way to aid in the treatment of skin infections. The enzymes in Zymox install a natural protective topical barrier that creates an active residual effect that kills bacteria, fungus and viruses. No antibiotics are present or necessary. Hydrocortisone helps relieve and reduce inflammation on affected area. Zymox Topical Spray's unique, all-natural topical treatment contains a combination of 3 enzymes with Hydrocortisone to reduce swelling.