Zymox is for the treatment of acute and chronic otitis externa due to bacterial, viral and yeast infections. Factors that predispose the ear to otitis externa: # Excessive skin folds in ear # Floppy ear carriage # Stenosis # Excessive hair # Excessive cerumen production # Suppressed immune system # Systemic antibiotics Zymox directions: # No prior or post cleaning required # Apply liberally to fill ear canal # Gently massage, working medication into infected area # Permit pet to shake their head to remove excess # Treat once a day for 7 days for acute infections # Treat once a day for 14 days for chronic infection Active Ingredients: Lactoperoxidase system plus Lysozyme, Lactoferrin, Hydrocortisone (1%).