I know you can make people sick by dropping them in the fire but when i do that they are just fine. How do i make them sick?

Why exactly do you want to make your villagers sick?

I want to make them sick to improve my healer.

this guide might help make people sick But this area is a spoiler

There is another way to increase your healer's skill without making everyone else sick. Begin highlighting here for spoiler: If you are playing VV2, which I'm assuming you are, Drag your healers to one of the herbs around the village. They will examine it and if they are sucessful they will gain skill. End highlighting. Hope that helps!

Thanks so much!!
But now I still want to know how to make people sick.

I agree .... why would you WANT to make a villager sick? I start out ALL my healers with a trip around the village examining all the herbs/flowers/strange plants, and keep at it until they know them all. It is a part of their healing knowledge. At this point they are trainees, and I let them go to find the rest of their training as people NATURALLY get sick. There is enough work, especially when you have a full village of 115 to keep them busy on their own without MAKING anyone sick.

Begin highlighting here for spoiler: The only way to make people sick in VV2 is to make a stew End highlighting. From that link I gave above.

Hope that helps!

One thing that makes me chuckle inside is seeing how often the Doctors of the village spend time at the lake and the beach.

The Doctors Will rush to cure sick villagers, it's true. But why in the world do you wish to make them sick? The gong gives "Takes Health," but healing the sick doesn't give that much more "education." Keep taking them to the plants. Since there is a plant just above the pool, where the doctors seem to spend a lot of time, just drop them on it in bunches. Yes, you can have more than one doctor studying the same plant. I just gather them up out of the pool, give them some study time at the vine, and let them walk down the hill, and I snatch them up again for another go at the plant! It seemsz to work rather well.