Acne belongs to the category of “acne” in traditional Chinese medicine, and bloodletting therapy can treat acne in patients with heat and toxicity (too much fire in the body). Heat-toxic acne is mostly pustular, distributed on the face, chest and back, with pustules, inflammatory papules, localized pain, accompanied by irritability, mouth and tongue sores, as well as symptoms such as redness and swelling of the eyes, etc. Blood-letting therapy is a kind of external treatment of traditional Chinese medicine, which has the effect of clearing heat and removing toxins. Clinically, bloodletting therapy is commonly used in the treatment of acne with heat and toxin, which can be stimulated by the local lesions to play the effect of clearing heat and detoxification, so as to achieve the therapeutic purpose. However, in addition to heat and toxicity, there are other types of acne, such as wind-heat in the lungs, damp-heat in the stomach and intestines, heat in the liver, and heat in the yin and fire, etc. Therefore, the blind use of blood-letting therapy may not be able to achieve therapeutic effects, but will aggravate the condition. If you need to use external Chinese medicine treatment, you need to be operated by a doctor, do not operate on your own to avoid adverse consequences.