For medicinal purposes, there is a specific active ingredient that does the business. The honey sold in food supplement shops is labelled to say what concentration of that magic stuff is present.

BTW the correct pronunciation is MAA-noo-ka, the initial AA is much longer than the second and third syllables. Maori (or more correctly Maaori) is a quantitative language like Latin. The usual British pronunciation is ma-NOO-ka which is dead wrong.