I'm with the rest of the opinions. Call Doc, see if he recommends a tetanus shot.
Tetanus
Overview
Tetanus, commonly known as lockjaw, is a serious and potentially fatal disease that occurs when bacteria enter the body through a wound. Tetanus bacteria are found in soil and in the intestines and feces of animals and humans. Tetanus is not spread from person to person. While most people associate tetanus with stepping on a rusty nail, many other things can cause tetanus. You may be surprised to learn that you can get tetanus after surgery, burns, puncture wounds (such as a needle stick), crush wounds (such as a brick falling on your hand), ear infections, dental infections, animal bites, body piercing, and tattoos.
Tetanus can be prevented by immunization. However, the protection provided by the vaccine series given to infants wears off over time. It is important for adolescents to receive a tetanus booster at 11 or 12 years of age (as long as 5 years have passed since the previous immunization). After that, everyone should get a booster every 10 years