There has been a recent study published in the Archives of Pediatrics and Adolescent Medicine by Hershey Penn State Medical Center revealing the benefit of buckwheat honeyto help with pediatric cough. In fact, it was found to work even BETTER than over-the-counter cough suppressants. This study has been picked up by the general news media as well.
Use of honey is also recommended by the World Health Organization which has also published a monogram on viral colds and the various treatments explained. Pay particular close attention to Annex 3 (Page 11) which gives various recipes to treat pediatric cough including the use of honey.
Any further questions or concerns should be directed to your pediatrician. Be aware that honey should not be given to infants less than 1 year old due to risk of botulism.
You can purchase buckwheat honeyon Amazon.com.