★★★★★
re: MRSA -> Severe Allergic Reaction to Antibiotics -> Steroid-Induced Manic Episode. Probably a worst-case scenario, but important for other people to know about drugs that can make things much worse: http://www.nickyee.com/abscess_septra.html
Following the medical ordeal, the Prednisone induced a manic-episode that required psychiatric attention.