Bad Vaccine Reaction?

Updated on May 15, 2013
M.R. asks from Eagle Pass, TX
7 answers

My son is 18 months old but is behind on his vaccinations. He just received his 15 month shots yesterday. He has been fussy all day and while I was giving him his bath I noticed that there is a hard lump about the size of a golf ball under both injection sites. They are hot and red and it hurts him when they are touched. I have already called the nurse hotline and am expecting to talk to the doctor tomorrow. Has anyone else's child experienced a reaction like this?

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P.M.

answers from Portland on

The purpose of a vaccine is to provoke an immune response by the body. A couple of days of localized swelling and heat, as well as mild fever are usually indications that this is happening. It's generally a good sign that the vaccine is "taking." Tylenol will help handle discomfort and fussiness.

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M.C.

answers from Washington DC on

Hard bumps at the injection site are common. If he is uncomfortable, you could give him a does of Infants Tylenol.

If he develops a fever or rash, call you doctor and let them know. A reaction to an immunization could be as much as 2 weeks out and still be considered a side-effect reaction.

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G.B.

answers from Oklahoma City on

Normal. I have 13 years+ in child care and I can't remember hardly any kids that didn't have that lump and it was quite warm. It will usually be gone by tomorrow. Give him Tylenol and then 4-6 hours later give him Motrin. The Tylenol fights fever and the Motrin fights inflammation.

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L.M.

answers from Dover on

I just answered your other post that is the same question but different title. It's probably not a reaction to the vaccine but rather a reaction to the injection itself. It's probably cellulitis which can be caused by the bacteria on the skin at the injection site.

1 mom found this helpful
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J.Y.

answers from Chicago on

That happened to my son, too. It lasted for several weeks. The doctor wasn't concerned, but I certainly was.

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B.P.

answers from Cleveland on

Give tylonel it should help with the pain

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A.S.

answers from Boca Raton on

No - my kid just has 41 different food intolerances. I guess his immune system didn't get the memo to stop "reacting."

:(

ETA: Alot of people are suggesting tylenol. I would read up on acetaminophen and its potential side effects. At a very minimum I would ask my pediatrician AND pharmacist whether acetaminophen is a good idea in terms of liver toxicity and inhibition of glutathione.

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