Why Coughs Linger in Delhi and Mumbai: Smog or Flu?
Doctors say the body's reactions to smog, seasonal flu and common colds look remarkably alike, so people in Delhi and Mumbai cannot easily tell the cause themselves. That makes self-diagnosis tricky and can complicate treatment for those with persistent coughs.
Context
Winter smog in Delhi and the wider NCR has become a yearly problem, and poor air quality can irritate airways and worsen existing breathing problems. Doctors often advise people with lung or heart conditions to take extra care when the air is poor.
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