When youre suffering from a deep chesty cough but still want to get on with your normal daily routine benylin chesty coughs non drowsy works deep down to loosen phlegm clear bronchial congestion and make your cough more productiveas an alternative doctors can also prescribe medication that can assist with flu please visit our online doctor service to proceed with an influenza consultation our uk registered gp will review your details and if appropriate can provide a prescription for th