I'm curious about the pain and typical effects of a double chin lift for improving a sagging jawline.

I am seriously considering a double chin lift because the skin around my chin has sagged significantly, likely due to frequently looking down at my laptop for long periods. Since this is an area with many nerves, I am apprehensive about the potential pain involved in the procedure. I would also like to know in advance if the stiffness when chewing or swallowing will persist for a long time after the treatment. Additionally, how long does it typically take for the wrinkles and skin to smooth out and tighten after a double chin lift? I have an important event coming up, so I am wondering when would be the best time to visit for the procedure to see the peak effects.