My daughter has a history of MRSA, yesterday she had a rash and fever, and turned out to be cellulitus, shes on antibiotic Cephlaxin( may not have spelled right). My main concern is that it may be MRSA again the doctors didnt do any blood work but i can feel small bumps no pus or anything just bumps, should i wait a couple more days or take her in to get some blood work done.