Under normal circumstances and with the correct operation of laser spot removal and proper aftercare, pigmentation will rarely occur after laser spot removal. Laser spot removal is targeted and selective removal of melanin, spot removal effect is obvious, side effects are relatively small, will not leave scars. However, if you want to reduce hyperpigmentation after laser spot removal, you should do a good job in all kinds of care.
May I ask if the dressing you are referring to is a collagen dressing, if it is a collagen dressing you can avoid hyperpigmentation.
There are also doctors who recommend taking vitamin C, just for reference~