If a tooth is particularly painful at night, most of the teeth are suffering from pulpitis. The most typical symptom of pulpitis is severe pain, spontaneous pain and nocturnal severe pain after eating cold, hot and other irritating foods. Patients with pulpitis have more severe pain at night than during the day, and at night, when the environment is quieter, the body’s threshold for pain sensation is lowered, which can also lead to significant pain. For the pulpitis caused by severe pain at night, often affect the rest, not able to sleep, then the patient can use cold compresses to relieve the pain, you can also use oral painkillers to relieve pain, you can take ibuprofen and fen-phen for pain, the next day must go to the hospital in time to do the root canal treatment of teeth, root canal treatment is the only clinically effective way to treat pulpitis.