Will loose skin after Infini radiofrequency treatment tighten up?

I had an Infini treatment 4 days ago for tightening the skin on my neck and my face. The swelling ,bruising and redness are improving, but I have noticed that the skin under my chin look more saggy than before the treatment, and when I touch the skin in that area it feels very soft, loose, "shaky", just not as firm as it was before. When I walk around I can actually feel that skin moving around like nothing is holding it. Is this a normal reaction? Will it get better?