I had my first botox and restylane a year ago with no side effects.I had my 2nd botox and my second restylane in Feb. of this year. 2 hours after the injections I was very tired and fell asleep with my face hanging down alongside the edge of my pillow. When I awoke my entire face below my nose had nearly tripled in size.No breathing problems. No pain nor scarring. That Dr. put me on prednisone to decrease the swelling. It went down in 3 days but often if I sleep with my face hanging down my lips swell and stay puffed and tight for about an hour. I had the injections because I developed Bells Palsy after having a emergency procedure to fill a brain aneurysm and the procedure caused the right side of my face to droop terribly.I will not do it again. I hope it dissolves soon.