I have OA and also do the hotwax bath. My step-daughter got me a hot wax bath for C-mas last year, (from Walmart)...I love it!!!! If you dont' want to reuse the wax in the unit, (there will be some skin cells that come off with the wax) remelt it and make candles. Old bread bags work great for putting your hands in...then wrap in a towel to keep the heat in. If you are lucky enough to have someone around when you are doing this, a little massage after the wax comes off feels heavenly!!!