After the hand was cut by the knife, timely medical treatment, by the doctor according to the severity of the wound bandage, disinfection, medication, suture and other treatments. If the wound is shallow, not hurt the subcutaneous tissue, the first thing to do is to disinfect it as soon as possible, you can use alcohol or iodine volts, and then use sterile cotton balls or gauze for compression to stop bleeding, after the bleeding stops, you can use a band-aid bandage, and change the medication on a regular basis. If the pain is severe, you can also use a moderate amount of painkillers, and try not to touch the water before the wound heals. If the wound is deeper and injures the subcutaneous tissue or even the muscle, with or without active bleeding, it is again important to disinfect it first and apply pressure to stop the bleeding. This is followed by a visit to the hospital where the wound is examined and stitched. If there is a tendon injury, the tendon will also need to be sutured. Postoperatively, antibiotics such as amoxicillin and cefaclor are given to prevent infection and the stitches are regularly changed and removed. Subsequently, it is necessary to administer a tetanus vaccine within 24 hours, dress the wound and change the dressing regularly. The best and fastest way to recover from an injury is to get professional and timely treatment, and it is important to seek medical attention and follow the doctor’s instructions to choose the appropriate treatment.