Welcome To HealthcareMagic forum,
What you have developed after the laser
is called POST INFLAMMATORY PIGMENTATION(PIH), a condition which is common after laser .But this doesn't happen in all the patient .This would happen if the right amount of energy is not used(if the doctor is not experienced) or if you have not used a good sun protection after the laser.At time when the patients skin color is wheatish then this may happen.
But fortunately this is a temporary condition ,it will go off after few weeks on its own.
But if you want a faster recovery then you can use any mild steroid
cream in combination with a hydroquionone cream at night over the spot.In the morning don't forget to use a good sunscreen three times a day.
Hope this would help you understand your problem.