During Diwali, not only COVID patients, but those with allergy, asthma, bronchitis, and even Chronic Obstructive Pulmonary Disease (COPD) should be careful as the bursting of firecrackers will take a toll on the lungs. Dr Prashant Borade, Head of Critical Care Unit, Global Hospitals, Mumbai shares essential steps COVID patients should take during Diwali to stay in top shape.