title: On call: I am a 71-year-old man with diabetes and high blood pressure. Ever since I can remember, I've been bothered by painful canker sores two or three times a year. My doctor says they aren't caused by my medication and I think he's right, since the cankers started before I developed diabetes. What causes the sores, and what can I do about them?
authors.forename: Harvey B
authors.initials: HB
authors.lastname: Simon
mesh_terms: D000368:Aged; D000779:Anesthetics, Local / Q000627:therapeutic use; D002266:Carboxymethylcellulose Sodium / Q000031:analogs & derivatives / Q000627:therapeutic use; D004155:Diphenhydramine / Q000627:therapeutic use; D004338:Drug Combinations; D006801:Humans; D008012:Lidocaine / Q000627:therapeutic use; D008277:Magnesium Oxide / Q000627:therapeutic use; D008297:Male; D013281:Stomatitis, Aphthous / Q000628:therapy*
chemical_list: D000779:Anesthetics, Local; D004338:Drug Combinations; D008277:Magnesium Oxide; C056627:Orabase; D004155:Diphenhydramine; D008012:Lidocaine; D002266:Carboxymethylcellulose Sodium