Allergic gingivostomatitis (due to gum chewing).
D000293:Adolescent; D000328:Adult; D002054:Burning Mouth Syndrome; D002638:Chewing Gum / Q000009:adverse effects*; D002648:Child; D005891:Gingivitis / Q000139:chemically induced*; D006801:Humans; D006967:Hypersensitivity; D008047:Lip Diseases / Q000139:chemically induced; D008875:Middle Aged; D013280:Stomatitis / Q000139:chemically induced*; D014060:Tongue Diseases / Q000139:chemically induced
D002638:Chewing Gum