After a cold, damage to the epithelium of the respiratory tract and the release of inflammatory factors into the bloodstream can lead to fever and thus to fire, resulting in toothache. In addition, the immunity will be low after a cold, and at this time if there are pathogenic bacteria left in the mouth, it will easily cause gingivitis and tooth pain. Therefore, active anti-cold treatment is needed, using cold and fever granules and compound aminophenalkylamine capsules. If toothache is more obvious, you can use Niuhuang detoxification soft capsule and Huanglian Shangqing tablets, or you can use antibiotics, such as amoxicillin or cephalosporins. During the treatment period, you should drink more water and eat more soft food. Since you have toothache, you should not eat raw, cold, spicy or hard food.