Oral ulcer and pharyngitis need to be considered, which are closely related to betel nut chewing, and betel nut chewing should be avoided to avoid further aggravation of symptoms. It is suggested that patients gargle with salt water every day, especially after eating, take vitamin B2 and tinidazole orally, and apply oral ulcer film externally to promote the relief of oral and pharyngeal symptoms. You should avoid alcohol, tobacco and spicy food in your life, and avoid staying up late.