Will White Marks from an IPL Burn Heal on Its Own?

Hi. Over a month ago, I got small burns from an IPL. They scabbed, which eventually came off, but left white marks. After that month passed and I went to get another IPL, both the nurse practitioner and the dermatologist told me that it was just a "discoloration" and that it would heal. It's pretty small. But, is that really true or are they just saying that to relieve me? I had a scab on my arm and when it came off it left a white mark too. It still hasn't completely faded after 2 years. Thanks