The HoMedics Paraspa Deluxe Paraffin Bath is a low cost hot wax bath that I use. I learn about the usefulness of these wax baths in hand therapy, used them at their facility, and decided to buy my own. REVLON MoistureStay Parafin Bath is also an alternative.

I use it about 3 times a day and it helps warm my hands and improve circulation and muscle extensibility.  It is messy, so try to keep some material to protect your counter tops around the unit.

A lot cost refill is the Therabath Refill Paraffin Wax - ScentFree, 6 lbs