Pericoronitis is an infection of the tissue surrounding the gums. Currently, oral cleaning, medication, adjuvant therapy, and surgical treatment are usually used to quickly reduce the inflammation of pericoronitis. 1, oral cleaning: usually recommended to use 1% to 3% hydrogen peroxide solution or chlorhexidine rinse for several times a day. And when gargling, pay attention to keep the gargle solution in the mouth for 2 minutes before spitting out. 2.Medication: If there is severe pain during the attack of pericoronitis, it is recommended to take some pain-relieving and sedative drugs, as well as anti-inflammatory drugs, such as cephalosporin and metronidazole, according to the doctor’s instructions. 3, adjuvant treatment: if conditions allow, infrared, ultra-short wave and other physical methods of treatment, can effectively play the role of anti-inflammatory, pain relief. 4. Surgical extraction: Wisdom teeth that have had pericoronitis are recommended to be extracted as soon as possible after eliminating the inflammation to eliminate hidden problems and prevent the recurrence of pericoronitis. Usually, patients with pericoronitis are recommended to take the above methods of treatment according to the severity of their condition, which can effectively and quickly reduce inflammation.