honey is used by some for medicinal purposes
sidr honey isnt proved to have any more benefit (medicinal) than conventional honey you buy in supermarkets.
Manuka has proven benefits.
So if you want honey for medicinal purposes buy Manuka. If you want it because it comes from the loot tree buy sidr.
Personally i say its a marketing ploy to make people think that sidr honey is proven fron Quran and Hadith.