Usually cosmetics can be used on surgical incisions 48 hours after suture removal. This assumes there is complete healing and no gaps or area of crusting on the incision. If crusting is still present, then you can apply around the area of crust, but not directly on it. Once healing is complete, if the scar is raised or red, certain creams can be useful. As your doctor which ones he or she recommends. I am partial to kelocote for hypertrophic or thick scars. Mederma, scar guard are also both reasonable alternatives. If redness is present at more than 6 weeks, then steroid cream can sometimes help, but steroid injections or certain laser treatments may be better. Hope this helps and best of luck