A deep penetrating cough medicine that provides fast soothing relief from chesty coughs allowing you to get on with your day benylin chesty cough original contains diphenhydramine hydrochloride an expectorant to help to loosen and expel mucus levomenthol helps to ease congestion and relieve stuffy noseseven after your cold or flu has gone sometimes a cough can persist for quite some time afterwards this can be truly debilitating uncomfortable and can affect your daily life by using a ben