question: I have been diagnosed with MPA vasculitis but I assume since mine is pAnca I also have ANCA associated vasculitis. My question is, I broke out with a painful horrible rash that looked like MRSA but I was able to identify it as a vasculitis rash. The doctor treaded me with clindamycin. Into my second week of antibiotics I started having severe headaches, no known fever and vomiting which landed me in the hospital. My CBC s showed low WBC s, low RBC s, low platelets and low neutrophils. Was all this caused by a flare up of my vasculitis?