Tapping on the Hundred Meetings point is generally not harmful. But note that the “knocking” here should refer to the Chinese massage in the knocking, in the appropriate strength is generally not harmful. The Hundred Meetings Point has the effect of benefiting the qi and promoting yang (tonifying qi so that yang qi rises and develops), opening the orifices and waking up the brain, tranquilizing the mind and tranquilizing the spirit (tranquilizing the mind and spirit), etc. It is mainly used to treat dementia, stroke, aphasia, blistering, insomnia, forgetfulness, seizure, epilepsy, hysteria, headache, vertigo, tinnitus, prolapse of anus, yinjiao (uterus prolapsing or even prolapsing out of the vaginal opening of the vagina of a woman), gastric ptosis, renal ptosis and so on. Baihui point is the name of a meridian point of the human body in Chinese medicine, belonging to the Directing Vessel. It is located in the head, 5 inches straight up from the center of the front hairline, at the intersection of the middle line of the head and the line connecting the tips of the two ears. Acupuncture or moxibustion is used at this point to benefit the qi and yang, open up the brain, and calm the mind. If you need to do acupoint acupuncture, to the regular medical institutions to ask a professional physician operation, do not operate on their own. To avoid adverse effects.