Tetanus wounds do not heal, and they contain a large amount of tetanus bacilli, which reproduce massively, leading to symptoms such as redness, pain, and even pus discharge in the affected area. Generally, these wounds cannot heal by themselves; even if the skin heals, the underlying and muscle tissues infected by tetanus can cause the skin to rupture and possibly accumulate pus. If a superficial wound is suspected to be infected with tetanus, it is necessary to promptly enlarge the wound, i.e., expand the surface wound, and rinse repeatedly with hydrogen peroxide and clean water to further kill the tetanus bacilli inside. At the same time, it is necessary to administer tetanus antitoxin, regularly observe the patient's clinical manifestations, and if necessary, administer tetanus antitoxin again after a period.