sinusitis
"Was prescribed this for suspected strep throat. I had a fever so the doctor went ahead and prescribed this to me. 

First day I had loose stools and nausea. This continued until the fifth day I had severe muscle pain and a severe headache. It was a struggle to just walk to the bathroom. Right now I have watery diarrhea and stomach cramps. Earlier today I had fever and severe body chills. Over the counter pain meds have not made a dent. Last night I was tossing & turning in pain, and got very little sleep. 

Cure worse than the cause! I've tolerated many other antibiotics very well in the past, and I will never allow my doctor to prescribe this to me again."