A building, basically a steam house, is there for you not only for cleansing but also for relaxation and purification.
There were three occassions that were held in Turkish Baths in old ages:
Bridal: Before getting married the bride to be invited all her relatives and friends, to have a bath, to have a body and hair care and to pre-celebrate the occassion with music and dancers as well as food and drinks.
Circumcision: Before circumcision of a child, a tradition to clean the child and make him ready for the operation.
Forteith Day: A celebration of the fortieth day of a baby and cleaning its body.
You can also visit Turkish Bath after Ephesus Tours, when you are around Kusadasi. Ephesus is about 18km from Kusadasi and 75km to Izmir.