London-based GP Dr Hana Patel says she often sees patients who have had a pesky dry cough after a virus or cold. But if your cough won’t budge, it could be a sign of lung cancer .London-based GP Dr Hana Patel says she often sees patients who have had a pesky dry cough after a virus or cold. But if your cough won’t budge, it could be a sign of lung cancer .Read MoreHealth News | Mail Online