A regular facial skin gets a lot of dirt and oil from daily work. When you are going to start steaming your face, you should wash your face. Otherwise, your face will start irritating, or pimples will increase on your face. Because the steam opens up the pores of the skin When the ope up the pores the dirt of the face will fill up the skin. Thus you can wash your face with slightly warm water. Then you can start facial steaming for 5 to 10 minutes.