"The Mystery of Lingering Coughs After Recovery"
Even after recovering from a cold, flu, or COVID-19, many people continue to experience a lingering cough that can last for weeks. Research suggests that post-infection coughs may be due to hypersensitive airway nerves caused by inflammation during the illness. While most post-infectious coughs resolve within two to three weeks, persistent coughing for more than eight weeks should prompt a visit to the doctor, especially if accompanied by other concerning symptoms.