The phenomenon of cold toothache is due to the inflammation of the throat, nasal passages and airways caused by the cold, and the inflammation spreads to the oral cavity, triggering inflammation of the gums or teeth, so the phenomenon of toothache will occur. At this time, first go to the stomatology department to let the doctor check to rule out the phenomenon of dental caries. If there is no caries phenomenon, is the gum inflammation caused by tooth pain, can use anti-inflammatory drugs to carry on the treatment. When tooth pain occurs, it is best to take oral metronidazole, ornidazole or tinidazole, combined with amoxicillin for anti-inflammatory treatment to be more effective. In addition, you should not eat too hot or too cold things recently, and your diet should be simple, light, easy to digest, and hard food should not be eaten. Spicy food especially can not eat, eat spicy food, with the role of making people on fire, and irritation is strong, it is easy to aggravate the cold as well as the phenomenon of toothache, so you should eat more fresh fruits and vegetables.