First off, I'm sorry this happened to you, but with careful management, you should be fine.What you are seeing is the squares of the crystal where you were treated and the gaps of untreated skin where the crystal wasn't applied. It is very difficult to treat a round face with a rectangular crystal and have the result be perfectly even with no gaps, but as a doctor who does her own IPL/BBL treatments, we aspire to a more even treatment than you had.For now, call the office and make sure someone sees you and that they follow you until you are healed and your skin tone is completely evened out Be VERY careful with sun avoidance and a zinc or titanium containing sunscreen. You may in a few weeks need to start some products like hydroquinone, a retinol/RetinA, kojic acid and alpha arbutin. If they try to IPL you to even things out in the first few months, don't do it. You may look great in 1-2 weeks, but if it takes longer, the safest and best way to get the final best result is to be patient and use creams/topicals until things are better.