Post Inflammatory Hyperpigmentation

I would not recommend Ultherapy. People claim this is a procedure with no risks but I have been left with a dark spot called "post inflammatory hyperpigmentation" I did not read this was a side effect anywhere. Nor was this ever explained to me as a side effect. My dermatologist has now given me some glycolic acid to use nightly in hopes that it clears up. Otherwise I am now going to be out more money to fix the hyperpigmentation