Azithromycin
"I was prescribed a 3 day, 500mg dosage. It got 5x worse within the first two days which had me scared for day 3. My throat was so swollen that I haven't eaten since Friday. Today is Monday. I have made absolutely no progress. I am 20 years old, 6'4, 220lbs and very fit. I usually eat 5,000 calories a day in order to stay full because I am very active. Nothing has been worse than the pain from this strep throat, and this medicine hasn't helped at all."