What is the pulling sensation and tightness under my chin after liposuction?

Hello, I had lipo under my chin 6 months ago under local. About three weeks out I started getting a pulling sensation under my chin when I look to the side or when flexing my head back. The dr. Said to wait six months for total healing. I called this week and the nurse said that nothing surgically can be done and that I should keep massaging the area. Is it possible to rectify this by continuing to do that and what is this from? Can anything be done? Thank you.