Are ultrasound therapy machines better then manual lymphatic massages?

I'm about to have a second round of lipo within 4 months and want to do whatever I can to make sure I don't get fibrosis. If that includes purchasing an expensive ultrasound machine I'm willing to do just want to make sure it actually works. Besides massages and garments what else is best. Willing to pay $1500 for machine if it works in between massages