Most toothaches are caused by tooth decay or pulpitis. Pulpitis is very sensitive to cold and hot stimuli, and excessively cold food can stimulate the nerve and cause severe pain, so patients with toothaches are not advised to eat particularly hot or cold food. At the same time, patients with toothache should seek timely medical attention to check the specific dental disorder and then treat it symptomatically. In the case of pulpitis, root canal treatment is required to remove the infected nerve in order to completely relieve the pain. If the swelling and pain at the far end of the tooth bed is caused by pericoronitis of the wisdom tooth, an adequate amount of oral antibiotics is required to stop the pain. If the tooth is cryptically cracked, loose, or traumatized, X-rays need to be taken and then treated according to the specific situation.