Any down time associated with a breast enlargement is primarily due to the pain associated with the muscle. Typically most women experience the following. (Some women do better than others.) The pain in the chest will last for 3 to 4 days. As the pain subsides you will notice stiffness to the muscle, which resolves in 10 days to 2 weeks. Everyone expects the pain but what really gets your attention and provokes anxiety is the swelling. The swelling can be very "generous". When the breast tissue and muscle are manipulated they will swell like any other tissue. However the breast tissue and muscle don't swell down they swell "up". You will look rather "chesty" for 10 days to 2 weeks. This will be worrisome because the breasts appear real high and oval in appearance. I can tell you not to worry, but you will. I don't recommend driving if you have pain or are taking pain medications. Both will slow your reaction time if you had to avoid something or someone in the road.