I am so sorry for your trouble. Unfortunately this is the wrong laser for your skin type with the settings used and you have developed post-inflammatory reaction. Please consult an expert in cosmetic dermatology to help reverse this damage through cortisone, bleaching agents and chemical peels. Best, Dr. Green
Post Inflammatory Hyperpigmentation From Lasers -- Skin Lightening, Light Peels, microsecond YAG
Unfortunately this is post inflammatory hyper and hypopigmentation. I rarely do IPL this way in asian patients this is a very high risk. Its much safer to do needling, nonablative fractional devices like fraxel/clear + brilliant or q switched lasers or microsecond yag lasers. Regardless, this needs immediate skin care treatment and light peels with sun protection.