The main principle is to stimulate the meridians of the skin to achieve the purpose of regulating the internal organs of the body. The main principle is to stimulate the skin meridians to achieve the purpose of regulating the internal organs of the body. The picking of wool boils, also known as prick therapy or root amputation therapy, belongs to a kind of external therapy unique to traditional Chinese medicine, i.e., the use of special needles in the human body’s acupoints, sensitive points, or specific parts of the body for prick. Chinese medicine believes that the white fibrous tissue under the skin is the root of the disease, which will block the meridians and lead to the blockage of qi and blood, resulting in physical discomfort. Puncture therapy has the effect of unblocking the meridians, activating blood circulation and removing blood stasis (promoting blood circulation and eliminating blood stasis), and regulating qi and blood. Picking out and breaking the white fibrous material under the skin can improve the patient’s discomfort due to the blockage of the meridians. Note that the picking therapy should be operated under the guidance of a professional Chinese medicine practitioner, and should not be operated blindly by oneself, so as not to cause harm to the body.