OverviewBack to top Robin Barr Ent. - Canker Sores Begone Oral Pain Reliever - 0.5 oz. Item# :53749UPC# :606705050007 Brand:Robin Barr Ent. Size/Form:0.50 oz. Dosage:1 Drop(s) Canker Sores Begone is for the temporary relief of pain associated with canker sores. Do not use this product for more than 7 days without the supervision of a physician or dentist. If it does not improve by then or if it becomes worse and fever, swelling or rash develops, see your doctor or dentist promptly. Do not exceed recommended dosage.