After 2 months of observing the behavior I can say that, when we take the curse during the full moon event, is not over. After 2 days the character returns to normal, but he remains cursed, and when the full moon comes (around the 13th) he becomes again werehyaena, without having been to the cave of werehyaena.
Now I am testing about take the curse without the event, because when you take the curse without the full moon event, it`s finish in some minutes. (now, we need to know if When you are cursed without the full moon event, you stay cursed for 10 minutes and it will comeback next 13th)finish.