The vapors from chai-yok, also known as vagi-steam, create a douching effect that is said to stimulate the production of hormones which aid in regular menstruation, maintain uterine health, correct digestive issues, and soothe the nervous system. Vaginal tissue is thought to be the most absorbent tissue in the female body. Practitioners of chai-yok believe it’s the best place for healing herbs to enter the body. Chai-yok is thought to treat infertility, endometriosis, vaginal tears, premenstrual syndrome, and hemorrhoids. It is also believed to reduce stress and keep skin looking young.
Western practitioners cannot confirm the effectiveness of chai-yok although there is some anecdotal evidence that the treatment is effective. However, some medical professionals are concerned that ingredients in the herbal teas may be harmful to the vagina. They also worry that the practice may cause burns or injury to the vaginal area.
Chai-yok is not recommended for people who are menstruating or pregnant, those with vaginal infections, sores, or open wounds.