Superficial IPL burn on forehead
Unfortunately you were treated on much too high of a level, so you have a burn. Fortunately it appears to be a superficial burn so I don't expect you to have long-term discoloration problems. First, you should make sure you contact the office that treated you so they know your settings were too high and you are burned. Second, I would recommend you keep the area moist (and possibly get a prescription for Betamethazone Ointment which helps with burns). HC cream and sunscreen are also a necessity. Do not pick any scabs that form.
"This answer has been solicited without seeing this patient and
cannot be held as true medical advice, but only opinion. Seek in-person
treatment with a trained medical professional for appropriate care."