Pain, soreness and swelling are the natural result when an implant is inserted into a sensitive area of your body, especially if it has been placed beneath chest muscles. Swelling crests within 48 hours and is mostly resolved in two weeks, but won't be completely gone for months. Because of swelling, your breasts will appear a bit elevated on your chest; it will take time for them to drop into their final position.
One of the best ways to manage swelling is to give your body time and space to recover fully and efficiently. Avoid physical stresses that tax the muscles, ligaments and skin that are attempting to heal. Walking, however, is recommended as a practical way to reduce your risk of developing a blood clot. Avoiding dehydration is also helpful, so drink plenty of fluids after surgery.