Tetanus injections are usually harmless. The injection is usually left in place for half an hour, and some patients may experience some side effects after the injection.
Tetanus injections are usually given to prevent tetanus caused by sharp objects, rust on the skin, and so on.
In most cases, tetanus injection does not harm the patient, but some patients may experience side effects such as fever, fatigue, irritability, etc., which can usually be relieved after taking rest. Other patients may experience depression, drop in blood pressure and other reactions, which are serious side effects and require active treatment.
If you need tetanus injection, you should go to the hospital and under the guidance of a doctor.