- Lightning God Power.
- Several villagers (better with building skill.
The Pain Totem is difficult to dismantle since it's being protected by a current of electricity. First, cast the Lightning spell on the totem to disable the current and then assign your villagers to start dismantling it. However, the current will eventually come back, so you'll have to repeat the same sequence one more time. Keep doing so once the totem is fully dismantled.
Once you have gained access to the Hospital, your sick villagers will make their way there. You can also assign a villager there to study medicine in order to improve their healing skill.