Happy Jack Ear Canker Powder 1/2 oz On chronic cases of long duration, this powder brought complete recovery within two to five days. It promotes healing and dries up the inner ear canker as well as the external areas that may become sore and moist from the canker discharge. We recommend cleansing the ears with ether or hydrogen peroxide prior to application. Easy to apply squeeze container. Contains Zinc Oxide and Iodoform.

If necessary, snip top for easier flow. Cleanse area to be treated. Apply powder daily for 7-10 days.