Fiberglass cast got wet in the shower. Do I need to change it?

Patient: I am currently in a fiberglass cast on my leg and the doctor told me not to get it wet. I had a garbage back on it in the shower, yet the water seeped through. Do i need to go get another cast? Thank you in advance.

Doctor: If it is really wet and you have just got the cast, id go see your doctor as you may need a new cast.