What should I pay the most attention to regarding post-Ultherapy care?

I am considering getting Ulthera treatment, and I have heard a lot that aftercare is just as important as the procedure itself.

For those of you who have received Ulthera, what kind of post-procedure care did you pay the most attention to?
They say moisturizing and UV protection are essential,

I am also curious about when daily activities like exercising or using a sauna became possible.
I would also appreciate it if you could share how long any skin sensitivity, swelling, or tightness lasted, as well as any aftercare tips that helped maintain the effects for a long time.