A nail in the foot should be promptly debrided, bandaged and injected with tetanus antitoxin or tetanus human immunoglobulin. A nail in the foot, if the wound is narrow and deep, and there is rust or dust on the nail, it is likely to lead to tetanus, which has a high mortality rate, so the foot should be promptly debrided and bandaged, and injected with tetanus antitoxin or tetanus human immunoglobulin. After the foot is pierced by a nail, the wound should be thoroughly cleaned with hydrogen peroxide, because tetanus bacillus tends to grow and multiply in an anaerobic environment, and cleaning the wound with hydrogen peroxide can destroy the anaerobic environment. After washing with hydrogen peroxide, the residual hydrogen peroxide should be rinsed out with saline. The local skin is thoroughly sterilized with iodophor. After the foot was nailed, tetanus antitoxin should be injected within one day to avoid the infection of tetanus bacillus in time. Foot stuck by a nail should be promptly cleaned, bandaged and injected with tetanus antitoxin or tetanus human immunoglobulin. It is recommended to consult a hospital for standardized treatment.