OMG - I Have A Red Sore On My Cheek! Am I Going To Die?

8. Aphthous Ulcer

An aphthous ulcer is also known as a canker sore. Although they usually occur inside the mouth, an ulcer can appear on your cheek as well. The sores are usually painful but unlike a cold sore they are not contagious. Medications and oral treatments are available to speed up the healing process; however, most canker sores go away on their one in one or two weeks. Icing can be used to dilute the pain and inflammation around the sore.