From your photo it is difficult to be sure just what is causing the problem with your neck, so I can only offer general information. Surface changes in the quality of neck skin are usually related to sun exposure, smoking (environmental changes) and genetics. These changes in color and rough texture can be helped by chemical peeling and certain light fraxel laser treatments, or intense pulsed light (IPL). If there actually is loose skin sagging and wrinkling, than some type of neck lift will be needed to firm and smooth the neck skin and improve the neck contour. Occasionally, there is looseness and sagging of neck muscles under the chin without any significant skin looseness around the neck, and improved neck contour can be achieved just by a minimal procedure under the chin to tighten the muscles. Also, if someone has extra fullness due to fat , usually in the front of the neck, then liposuction may create a sharper angle to the neck without any skin tightening needed. You should seek out a plastic surgeon experienced in cosmetic neck surgery to analyze your condition and listen to your concerns. He or she could then offer you the best options to improve your neck.