Is Numbness a Side Effect of Ultherapy?

Ultherapy is ultrasound which goes to a depth of 1.5-4.5 mm.  This energy may also hit cutaneous nerves and cause temporary numbness.  This is normal and will resolve.This should return to normal in about a week or less.

Cases of numbness of which I've heard have all been transient for a few days to weeks and have resolved by themselves.  The fine nerve endings may respond to the ultrasound heat from Ultherapy by not conducting their normal impulses until they heal. See your doctor discuss your situation.