Thieves is anti-microbial, anti-fungal, anti-bacterial, immune boosting. The coupling with honey is primarily because thieves is a hot oil blend and is therefore pretty spicy on its own and also because local honey helps your body manage allergens.

I take it because I find my body kicks off/wards away the crud much faster and morning congestion clears up a lot easier.

Also the only sweet thing I usually have in a day lol