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A 29-year-old male asked:

Small pimple on groin for 4 days...grew and became painful and very red...on bactrim (sulfamethoxazole and trimethoprim) now in case it's staph...is it rare to spread to blood.scared?

2 doctor answers4 doctors weighed in
Dr. Richard Galitz
Facial Plastic Surgery 42 years experience
Yes: Spread to blood or septicemia is a very rare condition in healthy individuals. The Bactrim (sulfamethoxazole and trimethoprim) antibiotic treatment should also help to eradicate the staph infection
Dr. Martin Raff
Infectious Disease 57 years experience
MRSA: It sounds as if you are being treated for furunculosis caused by a strain (USA 300) of Staphylococcus aureus that is resistant to methicillin (MRSA), and this is quite appropriate. It would be unusual to see this become a bloodstream infection, although nothing is impossible.

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Last updated Aug 17, 2020

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