Gaining excess “skin” after CoolSculpting. Why is this happening?

Hello! It is difficult to know exactly what is going on with you without an exam or photos. Sometimes right after coolsculpting with the swelling things are tight in the area, but once you lose the swelling and the fat cells that are killed are absorbed, the skin will not spring back as much as we would like. This can be managed with non-invasive skin tightening if minor. If major, sometimes surgery is needed. If the area is not just loose skin, but an area of fat, you could be one of the rare patients that develops something called PAH following coolsculpting. This is where the area treated becomes enlarged with fat cells and fibrous tissue. This is treated typically with Vaser liposuction (or any HFUS liposuction). If you had this done at a medspa without a surgeon on site, I'd recommend consultation with a board certified plastic surgeon who is capable of managing all of the potential causes.