Tooth decay that is caries, patients due to a large number of food blockage symptoms of gum swelling and pain can be taken medication, general measures to regulate the way to reduce the swelling, if necessary, can be taken to surgical treatment. 1. Medication: When patients with caries have swollen and painful gums, they can follow the doctor’s instructions to use anti-inflammatory rinses such as compound boric acid rinse and compound chlorhexidine rinse. In addition, patients can also follow the doctor’s instructions to use fluoride such as stannous fluoride solution, silver fluoride solution. 2. General measures: when patients with caries have swollen and painful gums, they should adjust their diet in time and eat less spicy and stimulating food, such as chili peppers and garlic. Patients should develop the habit of brushing their teeth on time and clean their mouth after eating. 3. Surgical treatment: patients suffering from caries can also be treated surgically after the swelling of the gums subsides, such as silver amalgam filling, inlay restoration, composite resin direct bonding restoration and other surgical methods. Patients with caries should go to the hospital in time and follow the doctor’s instructions for treatment.