Bloodletting therapy can be used to treat heat illnesses such as heat stroke, headache, tonsillitis, and other febrile illnesses. Bloodletting therapy, also known as blood-stabbing method, is a therapeutic method of releasing a small amount of blood by puncturing specific parts or points with three-pronged needles to achieve the purpose of releasing heat, subduing swelling and relieving pain. It is generally used for solid and hot symptoms, such as heat stroke, headache, tonsillitis, neurodermatitis and other disorders. Specific method: the doctor first disinfects both hands and the site of needling, and then pushes and presses at the site of needling, so that the blood gathers, holding the needle in the right hand, the thumb and forefinger pinch the handle of the needle, and the end of the middle finger is close to the lower end of the body of the needle, and then quickly stabs into the disinfected part for 1-2 minutes, and then immediately discharges the needle and gently squeezes it to make it bleed for a few drops, and then presses on the hole of the needle with the disinfected cotton ball. After discomfort should seek medical attention, bloodletting therapy needs to be operated by a professional doctor, not by oneself.