The time it takes for post-surgery swelling to subside will vary from patient to patient. On average, most patients begin to notice a significant decrease in swelling 3-4 days following both a genioplasty and chin implant surgery and find it completely disappearing within 2-3 weeks. To minimise your swelling, you should keep your head elevated as much as possible, avoid bending over or lifting heavy things and avoid prolonged exposure to the sun.