Reading Time: <1 minutehttps://news.yahoo.co.jp/articles/cd03d70cdd23b5ad36642d5f86d1e611f9bd297d It's a tragic accident. Even in dentistry, there are a constant stream of infant deaths from xylocaine poisoning every year. Like many people, doctors also think that local anesthesia is safe and that there is no risk because it is local anesthesia, and there are many cases where they do not pay attention to the concentration and amount of anesthesia they inject. In the past, a woman in her twenties was given local anesthesia for an underarm odor surgery, and a fatal accident due to xylocaine poisoning occurred at a cosmetic surgery clinic in Tokyo, and was widely covered in the news. In dentistry, anesthesia is performed using a concentration of 2% xylocaine, that is, lidocaine hydrochloride. Even in cosmetic surgery, a high concentration of 2% may be used for long-term surgery. However, anesthesia is effective even at a low concentration of 0.2%. Especially with anesthesia at a concentration of one-tenth, there is almost no risk and it is unlikely that an accident will occur. In treatments such as MiraDry and Viewhot, there are many facilities where a nurse performs the treatment after the doctor administers anesthesia, and treatment is recommended without checking the patient's reaction or condition after the local anesthetic injection, so we are concerned that anesthesia accidents may occur during axillary odor treatment. At our hospital, we use 0.2% local anesthetic as a rule, and we perform local anesthesia with care to ensure that no anesthetic accidents occur and to avoid putting strain on the patient's body. Anesthesia for treating axillary odor and hyperhidrosis is safe just because it is local, but this is not to say that it is safe, and it is something that patients should be aware of before undergoing treatment.