Daptacel Vaccine. Generic Name: diphtheria, tetanus, acellular pertussis vaccine (DTaP) pediatric (dif THEER ee uh, TET a nus, ay SEL yoo ler per TUS iss) The tetanus shot protects people from the tetanus infection. It is an important vaccination to have. Most people will not have side effects, but potential ones may include redness and swelling. Tetanus, Diphtheria, Pertussis (Tdap) vaccine information, who should and should not get the Tdap vaccine, benefits, possible reactions after vaccination, and what tetanus, diphtheria, and pertussis are. Doctors give unbiased, trusted information on the benefits and side effects of Pneumococcal Vaccine to treat Pneumonia: Dr. Van Dis on swollen arm after pneumonia shot: You should not be having pain at the injection site for months after an injection unless something is seriously wrong. Either they hit a nerve, there is infection or a blood. Giving babies Tylenol to prevent fever when they get childhood vaccinations may backfire and make the shots a little less effective, surprising new research suggests. Is It Normal To Have Red Swollen Arm 5 Days After Tdap Shot. Is it normal for the site of a tetanus shot to get more painful bruised and red days after the shot Most tetanus shot reactions are signs that your body is responding to build immunity against tetanus. Tetanus, or lockjaw, is a disease caused by a bacterial infection. However, a tetanus shot can. I got a tetanus shot Friday morning and it is getting progressively more sore. It hurts pretty bad, couldn't sleep on it and can't really use it to lift anything (not even a glass of water). I just got the tetanus/pertussis shot this morning during a physical I remember getting a Tetanus shot 11 years ago after getting bit by a mouse, and my shoulder burning like fire for a week afterward. Doctors give you trusted information on vaccines and vaccination schedules: Dr. Fowler on flu shot needle size: Per the cdc, the intradermal shot uses less antigen ; a much smaller needle. So yes - it may be painless for some people.