Within 15 to 25 minutes we've frozen away the nerve and the patient will know immediately if they have good results. Halland Chen More Quotes by Halland Chen More Quotes From Halland Chen The iovera works in a very novel fashion. It actually harnesses the power of focus cold therapy. Halland Chen health The interesting thing that makes it very safe is one of the reasons why it doesn’t last forever— because you’re not permanently damaging or killing off the nerves, [the nerves] do regenerate and grow back over time. Halland Chen health