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Why do tetanus vaccines hurt so much?

I got my flu and TDaP on Thursday. Neither hurt going in; the nurse was VERY good. Friday I had some pain on the flu side when I flexed my tricep. The TDaP side hurt like hell. Two days later, it still aches and is swollen.

I'm sure it's the tetanus part of the TDaP. I've had the same reaction twice to straight tetanus vaccines. I even planned this, taking it in the arm on my non-dominant side, because I need to use the other arm.

Anyone know why this happens? And what I can do. I thought hot baths might help the blood clear out whatever was the problem, but it doesn't, and aspirin--my pain killer of choice--isn't doing much for the pain.

2 Answers

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  • Lak
    Lv 6
    1 decade ago
    Favorite Answer

    May be an Arthus reaction- read this and see if it sounds like what you had. If so discuss with your doctor.

    http://www.cdc.gov/vaccines/pubs/pinkbook/download...

  • 1 decade ago

    There is no definitive answer to this one since every one who receives this type shot has a different reaction to it..Me my arm feels so heavy right after the meds is injected and stays heavy feeling for a day or so...Some do believe that its the tetanus bacteria itself....Causing the pain levels an individual has either right after or sometime later after the inoculation.It could also be from the acidity or concemtration levels.....May need to get a stronger dose pain killer till you are free of pain..

    Can try ice packs for 15 mins then a warm pack for 15 as well This seems to help Sorry you are in pain!

    Source(s): trainning
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