Honey is recommended as a cough medicine by the World Health Organisation.

In this randomized controlled study, the effect of 3 types of honey for the treatment of upper respiratory tract infection –associated cough in 300 children aged 1-5 years were compared to a placebo.

Results demonstrated that honey was superior to the placebo in alleviating the cough.

Reference:

Cohen, H. A., Rozen, J., Kristal, H., Laks, Y., Berkovitch, M., Uziel, Y.,…Efrat, H. (2012).  Effect of honey on nocturnal cough and sleep quality: A double-blind, randomized, placebo-controlled study. Pediatrics, 130, 465-471. Doi: 10.1542/peds.2011-3075