Hyperpigmentation? Help 😫

Had my 3rd treatment one week ago - first two were fine had some swelling and a few small blisters but nothing that didn’t subside within a week. This time I had huge blisters and red skin everywhere, really bad reaction 😩 the blisters have popped and the skin came off one of them in the bath yesterday and has revealed super white patch where it was. Is this hyperpigmentation?? Has anyone had the same? Is it like this permanently now or has anyone had it heal before? 🙏 I know I need more time for healing but the skin is dry and falling off daily and revealing more little patches the same 😭 worried my skin is ruined and I’m not even close to being done with removal!! Any similar stories / tips / advice appreciated please x