Kank-A Mouth Pain Liquid is the complete solution for canker sores and other mouth sores. This maximum-strength pain medication contains benzocaine for fast, temporary pain relief. Kank-A Mouth Pain Liquid forms a long-lasting barrier that holds the anesthetic in contact with the sore and acts as a barrier against further irritation. Includes a convenient integrated control-tip applicator for accurate, mess-free application. Because of Kank-A Liquid's effectiveness for temporary relief of pain due to mouth sores, it has been accepted by the American Dental Association.