Welcome To HealthcareMagic forum,
There are times when the laser
is not given properly or when the energy is high ,this type of problem can occur.
There are different kinds of laser machines,so the selection of laser machine has also to be right(i.e.depending upon what you had).
Next I would put it this way-" its not just the machine ,but the man behind the machine which is also important". So,if your treating doctor was not experienced ,then such complication can occur.
If the post laser instructions were not followed by you or were not given by the concerned doctor, then such a complication can be seen.For example sun protection,i.e. use of a good sunscreen daily three time has to be followed strictly.
So,such Do's & Don't are important too.
Chemical peeling ,bleaching just after the laser should not be done.
The most common problem which we see after the laser is post inflammatory hyper-pigmentation (PIH)..but this is reversible ,and responds good to treatment.
I hope this would help you understand your condition better.If you have any further questions,you can write back to us.