Hi Mothra, welcome to the forum.
I think the use/properties of honey and other herbal and home remedies predate Islam by centuries. Most folk medicine, besides Traditional Chinese and Ayurveda as well as the greeks were using these remedies long before they were attributed to Mo !
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3758027/Traditional and Modern Uses of Natural Honey in Human Diseases: A Review
It has been used both as food and medicine since ancient times. Human use of honey is traced to some 8000 years ago as depicted by Stone Age paintings....