Is it safe to do Ultrasound Therapy in neck and jowls myself at home? Am I doing the best treatment? (photo)

I am a 62 year old and I had a face lift with SMAS, buccal fat pad removed and neck lift a year ago that left me with neck scar tissue and the jowls stayed. I massaged the neck and had ultrasound therapy. A year later the doctor went in to break some scar tissue and did liposuction of my jowls from the marionette lines. 6 weeks after, I still have the scar tissue there as you can see and I have 2 hard lumps for jowls, I am massaging and doing ultrasound in both areas again.  I am massaging and doing the ultrasound therapy this time at home with a 3 MHz machine I purchased. Do you agree w/this