Is the tumescent technique the protocol for Miradry?

Yes, this is the preferred protocol.  As others have pointed out, the tumescent technique is currently recommended for Miradry. The goal is to use of a large volume of weak local anesthetic (tumescent) to create more physical distance between the treatment head on the sweat glands and the underlying deeper structures. The fluid also acts as a "heat sink" to absorb any excess heat in the area. All this allows for a more comfortable treatment at higher treatment settings with better reduction of sweat and less risk of post-treatment side effects such as numbness.

The recommended numbing protocol is to use the tumescent solution. This will ease the discomfort related to the treatment and will protect the underlying structures such as nerves. Using the tumescent allows your MiraDry provider to treat at a higher level setting as well.

Yes, using tumescent in each of your underarms is the preferred technique for numbing or anesthetizing the area.  It also protects the deeper structures in the area to minimize risk of injury to these structures.