I had platysmaplasty and lip a month ago and had no swelling at first. Now four days ago the muscle under my jaw, riright underneath the jowl is bulging and swollen. My Dr says it has to just be swelling. Could it also be platysmaplasty relapse or a swollen lymph node or gland? -How will I know and how long should it take to subside if its a lypmph node or just a swollen muscle? Is there anyway to determine this? I also had a cold and wound breakdown on my chin incision.