Health2 min
Bengaluru Doctors Warn Firecracker Smoke Can Keep Lungs Irritated for Days
Asthma, sinusitis and allergy patients may feel the effects of festival smoke long after the fireworks fall silent, and indoor air can hold on to the problem.

Bengaluru's pulmonologists are urging residents to treat firecracker smoke as a health problem that outlasts the celebration. Outdoor air may clear within hours of the last burst, but doctors say the damage to sensitive airways can keep building for days.
People with asthma, chronic sinusitis and allergic rhinitis are most at risk. Specialists say they may notice coughing, wheezing, chest tightness and shortness of breath that linger for two to three days, especially when fine particulate matter levels run high or when someone already has an underlying lung condition.
Indoor air is a bigger concern than many households expect. Doctors point out that PM2.5 slips in through open windows, doors and gaps around ventilation, and it can hang in a room for hours after the smoke outside has thinned. How long it stays depends on room size, airflow and filtration. HEPA air purifiers can help, but only if they are sized correctly for the room and serviced regularly.
The timing of symptoms can also catch people off guard. Some patients may feel worse several hours after exposure, or the following morning, as tiny particles inflame the airways and trigger bronchospasm. Repeated exposure over a festival period can make airways more reactive, even in people whose allergies were well controlled beforehand.
Not every reaction is an allergy. Doctors explain that smoke from fireworks carries particulate matter, sulphur dioxide, nitrogen oxides and other chemicals that irritate the respiratory tract directly. That irritation can worsen existing allergies and increase mucus production, which makes breathing harder for many people.
The effects are not limited to the lungs. The nasal lining can swell and produce extra mucus, leading to blocked noses, facial pressure and headaches for people with sinusitis. Allergy sufferers may find themselves sneezing, itching and tearing up. For families planning to light crackers, doctors suggest keeping children, older adults and anyone with breathing problems away from the smoke, closing windows during and after the display, and keeping inhalers and prescribed medication within easy reach.
Read the full report from Deccan Herald here: Bengaluru firecracker smoke can trigger delayed respiratory symptoms, warn doctors.
