Toothache hanging water is effective, but it is not necessary to hang water for toothache, because hanging water is usually for some patients who need it relatively heavily. Although the toothache is very painful when it hurts, it does not necessarily need to be hooked up to water every time. The most important thing about toothache is that it is recommended to go to a professional oral health care provider to check what is causing the toothache. The most common clinical causes of toothache are pulpitis and periapical inflammation, which can be alleviated by simply hanging water, but generally cannot cure the disease. To cure the disease, it is necessary to undergo systematic root canal treatment in the dentistry department to extract the pulp and perform perfect root canal filling to treat the disease completely and systematically.