A must-have whenever cold creeps in. I had to take AFK (Away From Keyboard/day-off) today as I started feeling some itchiness on my throat. Sure enough, my temperature hits 37.8°C earlier today.
Honey citron is perfect not only when you are in need of citrus boost, but you can make it as cold beverage too. It tasted like orange marmalade (and yes, you can use it as toast spread.)
This brand, KMT, is pretty popular and available on most major K-supermarkets/asian groceries.