bladder infection
"Macrobid solved the kidney infection but made me extremely ill and I ended up in the hospital for 4 days with pneumonia. It wasn't until day 6 that I became tired, short of breath, rash on my hands, fever, and could not keep anything down.  I ended up in ER and my liver counts were elevated, esinophils high, respiration rate poor, oxygen levels low, and chest x ray confirmed pneumonia. I can't take it again."