Urgo Aftas – Mouthwash. Description: A mouthwash designed to relieve pain and promote healing of canker sores, ulcers, gingivitis, minor burns, and wounds in the oral cavity. The product protects the oral mucosa and is ready-to-use. It is alcohol- and sugar-free and does not cause a stinging sensation. Indications: Canker sores and aphthous stomatitis. Ulcers in the oral cavity