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

Full facelift is what gives the best results for aging face! Minilifts as you have found out give very mini results. See several very experienced facelift surgeons who can show you many natural results for an evaluation.

You can do more threads at anytime. In reality it is best to wait until all the swelling and bruising are gone before doing more threads. The lumps and deeper nasal folds may just be the result of swelling.  I would go back and have the everything checked out.   Threads are a wonderful...

How long ago did you have the threads placed? There can be significant swelling from 4 -6 weeks with PDO threads. These threads do resorb over time. It can be as long as 4 months. Heat will cause these threads to resorb faster. They can be removed with a minimal access  but...