Here is what I've learned about honey. Honey is a good source of antihistamines, because the bees who collect pollen are constantly powdered all over with it. Therefore, they produce natural antihistamine to protect themselves and the hive when they return.

So, the best honey, especially for someone who has allergy symptoms, would be honey that's produced and harvested locally, reflecting the pollinated flora in your area. I purchase "Local Hive" brand, which offers several regional varieties from around these United States, as well as Wildflower, etc.

Mānuka honey would originate Down Under, although it seems that it's produced elsewhere now, but what are the chances that allergies are sensitive to the mānuka tree alone? That being said, I received some from a friend as a gift, when I was singing in choir but throat pain was acting up. It's exotic, it's thick and rich; it tastes really, really good. I'm not opposed to enjoying it as a treat!