I had hyaluronidase after an "overfill" of Restylane that left my undereyes kind of baggy (never had a problem before, it's always looked great in the past). Mind you, it was an "OK" result, just not great. So I went in for the hyaluronidase -- had to go to a plastic surgeon as my derm said he didn't believe in doing it because it can dissolve your own tissue along with the Restylane...