Is it possible to recover from the sunken cheeks that are a side effect of Ulthera?

I have gained weight recently because I have been staying home for treatment for an illness, and now my jawline and cheeks look very saggy. I became interested in Ulthera and looked up reviews, and I noticed that some cases of noticeable cheek hollowing are among the side effects.

Is it possible to recover from this sunken cheek condition?

If recovery is possible, what methods are available?

I suppose many people prefer it because the satisfaction level outweighs the side effects, but I'm curious because I'm worried about the side effects for no reason.