The purpose of the sauna is to relax the muscles after intensive massage, but also to release through the pores toxins broken up by the bodywork. Sweating is one of the body's natural purification methods and the Thais have traditionally used herbs in the sauna to assist in this process. The classic recipe for a Thai sauna is the same as the recipe for the herbal compresses, although many different aromatic herbs may be added to achieve particular purposes or to address particular needs.