The one weed most feared for toothaches is not raw horehound, and there is no such thing as the one weed most feared for toothaches. Raw dihuang has no role in treating toothache. Raw dihuang has the effect of clearing heat and cooling the blood (to relieve blood heat by clearing heat), nourishing yin, and generating fluids. It is used for fever with tongue-redness and thirst, internal heat due to yin deficiency, bone vapor and labor heat, internal heat and thirst (internal heat accompanied by symptoms such as excessive eating, drinking and urinating), vomiting of blood, epistaxis, and spotting and rash. It should be noted that it should not be taken by people with dampness in the spleen and stomach, or with yang deficiency and phlegm in the chest and diaphragm. There are many causes of toothache, such as stomach fire toothache, wind-heat toothache, dental caries, etc. Toothache can also be caused by trauma to the teeth, so you can’t blindly use a kind of weed to treat toothache. Patients with toothache need to hang up a dental consultation first, and choose the appropriate medication according to the situation. If you need to take raw diclofenac, you should be under the guidance of a doctor.