A dressing for application to skin, the dressing including: first and second portions； an adhesive applied on a surface of the first and second portions for adhering the first and second portions to the skin； an elastic member having one end connected to an end of the first portion and another end connected to an end of the second portion； and a locking member entirely disposed between the end of the first portion and the end of the second portion, the locking member restraining the elastic member into a first shape； wherein when the locking member is at least partially removed from between the first and second portions, the elastic member moves in a direction towards an unrestrained second shape.
