Black tooth decay that is caries, patients can take medication, surgical treatment, general measures of conditioning and other ways of treatment. 1. Medication: Patients with caries can use fluoride such as sodium fluoride glycerin paste and tin fluoride solution as prescribed by the doctor, as well as anti-inflammatory rinses such as compound chlorhexidine rinse and concentrated tinidazole rinse. In addition, if the patient has symptoms of pain, you can also follow the doctor’s advice oral acetaminophen tablets, ibuprofen extended-release capsules and other non-steroidal anti-inflammatory drugs to relieve pain. 2. Surgical treatment: patients with caries can also follow the doctor’s advice to take surgical treatment, mainly to take silver amalgam filling, composite resin direct bonding repair, inlay repair and other surgical methods. 3. General measures: patients with caries should develop the habit of brushing their teeth in daily life and clean their mouth in time after eating. Patients should eat less high sugar food, such as candy, sugary drinks and so on. Patients with caries should consult a doctor in time and follow the doctor’s instructions to avoid blind medication. In addition, patients should also follow the doctor’s instructions after treatment and review on time.