Nose thread lift. Do threads create scar tissue/nerve damage? Can a biofilm form over the threads?

While I'm considering getting a nose thread lift with dissolving barbed threads to raise the tip of my nose, I'm concerned about the safety of the procedure. I know the threads stimulate collagen production, but do they also create scar tissue / nerve damage? Can a biofilm form over the threads? And if there is a problem, how reversible is it (can the threads be removed before they are absorbed by the body)?