If the hand is cut by a knife, if the wound is relatively deep, it is recommended to give a bandage at home to stop the bleeding, and then go to the hospital immediately to give a formal disinfection of the wound. If the wound is open and not closed, healing will be very slow. After the formal treatment of the wound, need to be given to prevent infection treatment, prevention of infection has the following methods. 1, regular wound disinfection bandage. 2, appropriate application of antibiotics, commonly used is amoxicillin, clindamycin, roxithromycin, the first or second generation of cephalosporin antibiotics, are very good for the prevention of infection. 3, if the wound cut deeper, it is recommended that the injection of tetanus antitoxin to prevent the tetanus bacillus. tetanus bacillus. Topical epidermal growth factor can also be applied, and this type of drug can promote epidermal growth and also reduce the formation of scars.