If a patient gets oral cancer by eating betel nut, he/she can improve his/her condition through general treatment, physiotherapy, surgery, radiotherapy and chemotherapy. 1. General treatment: betel nut belongs to stimulating food, long-term eating of betel nut may lead to tooth wear, gum recession and oral cancer, etc. Patients should reduce chewing betel nut and avoid eating cold, hard and stimulating food so as not to aggravate the discomfort in the oral cavity, and those who are unable to eat due to pain in the oral cavity can be given nasal feeding, and when there is serious bleeding in the oral cavity, they can be given blood transfusion treatment. 2. Physical therapy: Early oral cancer patients with mild symptoms can improve their condition through laser therapy and cryotherapy. 3. Surgery: For oral cancer patients with serious condition, surgery can be performed through lesion excision, cervical lymphadenectomy, tissue defect reconstruction, etc., so as to remove all tumors as far as possible, maintain physiological function and prolong survival period. 4. Radiotherapy and chemotherapy: oral cancer patients can be treated with radiotherapy or chemotherapy before or after surgery to reduce the number of tumor cells and improve their conditions. It is suggested that patients should choose regular hospitals for consultation, actively cooperate with doctors’ treatment, pay attention to rest in life, avoid overwork or staying up late, and at the same time, do a good job in monitoring their condition and follow the doctor’s instruction for regular review.