Hello and thanks for your question. Some anecdotal evidence suggests that arnica gel and vitamin K gel can be used to reduce bruising and speed up recovery following surgery. However, clinical trials remain inconclusive. You may not experience any noticeable improvements during your recovery...
That is often a challenging area to correct and not have your mouth area look too tight or have a done look. Sometimes some simple liposuction to the area or fillers nearby can help. I prefer not to remove the skin in that area as the scarring can be visible and it's always best to avoid a scar...
In my practice, we do not offer ultherapy for the reason you mentioned. It does not work. The only way to correct saggy excess skin is with surgery. There is no other way.