Tetanus antitoxin has a certain role in preventing the recurrence of diseases within the human body. One should not drink alcohol before the wound has fully healed. Drinking alcohol can directly affect local blood circulation, accelerate bacterial growth, and lead to infections. Generally, it is also possible that drinking after receiving a tetanus shot could affect the function of the injection. Therefore, it is advisable not to consume alcohol for at least half a month, especially within the first half month after the tetanus shot. Of course, it would be better to extend this period, such as avoiding alcohol for up to 3 months. This can achieve the best preventive effects of the tetanus toxin, and the medication can perform optimally.