I have mrsa bumps all over my back, which look like pimples but are tender and some puss filled. i just started antibiotics. it's probably been 2 weeks since the first bump appeared. did i catch it soon enough? i was never swabbed for it. should i be?

MRSA: Most MRSA infections are diagnosed by culture and antibiotic sensitivity testing of staphylococcus aureus bacteria isolated from an infected site; a pcr test is also available.Some MRSA strains are susceptible to trimethoprim-sulfamethoxazole (bactrim), Doxycycline (vibramycin), and Clindamycin (cleocin); although reports suggest Clindamycin resistance is increasing rapidly.