How can I dissolve or reverse a PDO threadlift? Would radio frequency, ultherapy, or lasers work?

Threads can be removed via RF or certain types of lasers. I would strongly suggest speaking with your provider first to see if their are any other options before removing the threads

Threads can be removed depending how long they have been in place. You can accelerate their resorption with RF and with certain lasers.   Often depending on  the problem (like dimple) the threads can be released without removing them.  Find an  experienced  practitioner  not only placing threads but removing them.