Hi, it didn't take too long beffore I noticed a difference in mine once I got off. Maybe 2 weeks or so? Watch the salty foods, as they increase the swelling! Try to eat more potassium as it helps shed the water. Bananas, baked potatoes, asparagus. Increase your exercise while the steroids are helping you feel better! Don't worry, that round face will be gone in no time! Good luck!