Dry and productive coughs can stem from various causes, ranging from mild to severe, including the flu, postnasal drip, allergies, and asthma.

My voice has been hoarse for a long time, and a checkup revealed a polyp. Why do vocal cord polyps cause hoarseness and a sore throat, and how is it treated? (Linh Phuong, 34 years old, Khanh Hoa)

My nose often runs in the morning or when I'm exposed to cold air. Why? Do I need treatment? (Lan Anh, 25, TP HCM)

I often have nasal congestion and use decongestant nasal sprays for relief. Is it dangerous to use these sprays regularly? (Trung Nam, 27, Ho Chi Minh City)

A woman in Ho Chi Minh City suffered a ruptured eardrum after her son accidentally kicked a ball at her head.

My husband often snores loudly after drinking alcohol. Why is that, and is it a sign of a medical condition? (Linh An, 30, TP HCM).