Aftex Gel Oral Junior 15 ml is a product designed for oral care for children. It is a gel that helps to relieve the discomfort caused by mouth ulcers, also known as aphthous ulcers, canker sores or aphthous ulcers. Canker sores are small painful lesions that can appear on the mucosa of the mouth, such as the gums, inside the lips or cheeks.