I have a fever, cough, sore throat, and nasal congestion. I've been taking medication but it hasn't helped. Is the medicine fake? (Dinh Thanh, 50, Lam Dong)
Antibiotics only provided temporary relief for my sore throat, and the condition recurred after a few days. Why does my sore throat persist despite multiple courses of antibiotics? (Thanh Nguyen, 34, Binh Duong)