Too Much of a Good Thing

We have a daisy plant. It was beautiful and healthy. The instructions said the dirt needed to be kept damp. I over-watered the plant so that it sat in water for several days. Its leaves began to droop and looked pitiful. I have now repotted the plant and placed it in a pot that has a hole in the bottom so any excess water can drain away. Will it recover? I do not know. It still looks pitiful and weak. I suppose the moral is that even a good thing can be overdone. Too much of a good thing may not be healthy.