What are the benefits of Raw Honey?

I have been looking into honey a lot (mostly for my son,7, who is underweight) and it sounds like it has a lot of health advantages.

I understand it is basically sugar, but does is actually have all the health benefits ive been reading about?

Also, how do you consume it? My son doesn't drink tea or coffee and he won't eat it plain or on toast.

Also, I have read that it is really bad to heat it up or add it to hot liquids, yet people put it in coffee and tea? What's up with that?

Thanks, I'm excited to learn more about this. TIA