Hi Doc,Since using 4% hydroquinone,I have burnt my skin and this had resulted in a black scar/patches.Although, this scar has healed, the dark patches from the burns remain.It has been a year now but the dark scars remain and are quite visible (It makes me look old). I am using Demelan for a week now.Can you help me lighten the scar as it has seriously effected my confidence at work Regards,Jose