The MSD Oto-Aid Pet Ear Cleaner contains natural plant oils and extracts. Use it to help your cats and dogs with those hard to reach dirt molecules. It will keep your pets from scratching their ears too often and lubricate their ears. Apply into the ear canal and massage the base of the ear for a few seconds for better distribution of the product. For routine cleaning, apply 1 to 2 times a week to assist in keeping the external ear canal in optimum condition. If there is any unpleasant odour, apply once a day for a period of 8 days, then every 2 to 3 days to ensure optimum hygiene of the ear canal. It is requested to refer to the package insert and product packaging for complete details before using the specific product. Please consult your vet prior to use for adequate and current recommended dose prescription.