I had IPL 2 weeks ago on my chest for hyperpigmentation. Directly after the treatment I had erythema and blisters. Now, 2 weeks later I have white spots. Is this hypopigmentation? My doctor gave me some cortisone cream today and told me to avoid the sun and use sunscreen. He also said, that we should treat the darker parts of my chest with ipl to lighten them up and get an even Skin tone. Is this a good idea? Will These spots go away? Is there anything else I can do? Thank you very much!