If your treatment contains acids (mentioned in our document that you receive after the treatment) it is not recommended to go to the sauna or the hammam immediately after your facial treatment. The heat and humidity of these environments can irritate your skin and cause increased sensitivity. It is recommended that you wait at least 7 days after your facial treatment before exposing yourself to the heat and humidity of the sauna or hammam. It's also important to follow your Skin Therapist's advice about using acid-based products and caring for your skin after your facial.