Can dermal hyperpigmentation fade with time?

You likely need nonablative fractional laser or radiofreuqency or microneedling with PRP or both to help repair this. I suggest only going to a board certified medical doctor who specializes in lasers for your laser care.  Best, Dr. Emer.

A fractional CO2 laser used by an experience laser expert is well tolerated with less risk for additional scarring than non fractional lasers. In general red heads and blonds with fair eye color (blue, green, hazel) have less risk of developing significant scars such as hypertrophic or keloid scars.

There is no reason smiling, talking or moving would influence the results of co2 laser.  What does is the physician performing the procedure and the use of PRP immediatley post treatment and sculptra before.  Best, Dr. Emer.

There is nothing fancy about this.  If you are considering resurfacing you should go to a board certified dermatologist who is experienced in lasers.  Best, Dr. Emer.

This is likely just nerve swelling called neuropraxia that can be improved with oral steroids and oral diuretics.  It may take up to 3 months to resolve.  Please speak to your treating physician.  Best, Dr. Emer.

For red acne scars, I would consider pulsed dye laser and application of Plato's Scar Serum twice daily. Best, Dr. Karamanoukian Los Angeles