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A 29-year-old male asked about a male:

After receiving pentavalent and pneumococcal vaccine in the leg 1 week ago a hard mass formed under the skin in place of shut of 1 of two vaccines.

1 doctor answer3 doctors weighed in
Dr. Julie Abbott
Preventive Medicine 46 years experience
Ice/observe: You must be writing about your baby receiving the pentavalent vaccine immunizing against 5 childhood diseases & pneumonia vaccine. Either might cause an inflammatory reaction under the skin. May ice and/or give acetaminophen for comfort. Observe for fever, diarrhea, vomiting, and see doctor promptly for any of these known side effects. Good wishes!
Last updated Oct 24, 2014

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