I have prolonged hoarseness and shortness of breath, and my doctor diagnosed vocal cord polyps. Why do polyps develop on the vocal cords, and how are they treated? (Giang Tran, 27, Can Tho)

An 11-year-old girl unexpectedly experienced seizures while studying, leading doctors to diagnose acute glomerulonephritis as a complication following streptococcal pharyngitis.

I have chronic sinusitis, and each time it recurs, my tonsils also become inflamed and painful. Why does this happen, and how is it treated? (Dung Nguyen, 45, Ho Chi Minh City)

A 26-year-old woman in Zhengzhou died from suffocation just 10 minutes after hospital admission, having mistaken symptoms of acute epiglottitis for a sore throat caused by eating spicy hotpot.