Winter can drive several illnesses and infections - common cold, flu and now COVID to name a few. For most of the respiratory infections 'cough' is a common symptom that either comes and goes or lingers on for weeks and sometimes even months. But when should you start worrying? Can persistent, continuous cough mean something more serious? And can it be a sign of lung cancer? Let us find out.Winter can drive several illnesses and infections - common cold, flu and now COVID to name a few. For most of the respiratory infections 'cough' is a common symptom that either comes and goes or lingers on for weeks and sometimes even months. But when should you start worrying? Can persistent, continuous cough mean something more serious? And can it be a sign of lung cancer? Let us find out.
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