India, Nov. 2 -- Dr Vikas Mittal, director, department of pulmonology at CK Birla Hospital, Delhi, told HT Lifestyle in an informational article published on Oct. 31, 2026, that some people experience worsening cough, throat irritation, wheezing, or breathing discomfort in the evening and at night due to a combination of air pollution, changing weather conditions, and underlying respiratory sensitivity.

What the doctor said about causes

Dr Vikas Mittal said symptoms do not necessarily worsen after sunset in everyone, and that timing alone cannot establish the cause.

He said fine particulate matter, particularly PM2.5, can penetrate deep into the respiratory system, irritate the airways, and trigger inflammation. He added that exposure to...