Natural Home Remedies for Mouth Ulcers A reddish “halo” surrounds the ulcer. The size, number, location, healing time, and periodicity between episodes of ulcer formation are all dependent upon the subtype of aphthous stomatitis. Previous Next Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 2017-10-14 spiel