Steam rises from a boiling pot of a mugwort tea blended with wormwood and a variety of other herbs. Above it sits a nude woman on an open-seated stool, partaking in a centuries-old Korean remedy that is gaining a toehold in the West.

Vaginal steam baths, called chai-yok, are said to reduce stress, fight infections, clear hemorrhoids, regulate menstrual cycles and aid infertility, among many other health benefits. In Korea, many women steam regularly after their monthly periods.