Toothache is most commonly caused by stomach fire. Since the teeth are mostly traveled by the stomach meridian, toothache is usually considered to be caused by stomach fire, often accompanied by sores on the tongue, swollen and painful gums, dry mouth, thirst, bad breath, and good hunger. In addition to toothache, especially chronic toothache, the pain is not particularly obvious, but at the same time accompanied by waist and knee weakness, loose teeth and other conditions are generally considered to be caused by kidney deficiency, kidney yin deficiency, deficiency fire on inflammation, so toothache is generally considered to be stomach fire or kidney fire. The treatment can be based on the identification of the appropriate drugs for treatment, for stomach fire toothache can be taken orally, such as clear stomach Huanglian pill, while for deficiency of kidney yin caused by false fire toothache, can be taken orally, such as Zhi Bai Di Huang Wan treatment, the effect is very good.