TOPICS: Aphthous ulcer, oral mucosa, erythematous surrounding, behçet syndrome, vasculitis, genital ulcers, uveitis, skin rash, viral infection, oral herpes, hsv-1, trigeminal nerve, viral infection, stress, sunlight, reactivation, squamous cell carcinoma, tobacco, alcohol, sun exposure, leukoplakia, erythroplakia, oral candidiasis, hairy leukoplakia, erythematous plaque, premalignant
