If your are being treated for tetanus, doctors wil give you antibacterials and anti-toxins to kill the toxins and bacerium that have already infected your body. Doctors will also clean any wounds you have.
Doctors will give you severe muscle relaxants such as Vallium to stop muscle spasms. Pain killers might also be given to you. Ventilator support to help you breathing and a trachotomy tube.

To prevent Tetanus, you should get a tetanus shot. A tetanus shot will immunize you. Just to be sure, you should always wash wounds and laceration so that no kinds of bacterium get in.