The main housing is defined by a large aperture formed in its side. The side aperture provides access to an internal treatment chamber. The user can insert one or both hands into the chamber through the side aperture to provide therapeutic treatment for the skin of the hands. The device has a removable fluid reservoir seatable into the main housing. Fluid from the reservoir is ported to an internal cool mist vaporizor such as a transducer or other misting apparatus. The mist is driven down a mist conduit by user-adjustable airflow. As the mist passes down the mist conduit, it passes a heating element that allows the user to selectively deliver heated or cool vapor into the treatment chamber. The user may utilize water and/or fluid having additives such as extracts, therapeutic medications and essential oils as the raw material for mist formation.