Honey for treatment of cough in children (Can Fam Physician. 2014 Dec; 60(12): 1107–1110. ) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4264806/

Conclusion

Honey can be recommended as a single dose of 2.5 mL before bedtime for children older that 1 year of age with cough.

この後に続く、ハチミツが咳に良いって論文は何かあるのかなあ。