You should steam your face about 1 to 3 times per week depending on your skin type and sensitivity:

• For oily skin, steaming 2 to 3 times a week is beneficial as it helps clear pores and balance oil production.
• For dry skin, once a week is recommended to avoid over-drying.
• Sensitive skin types are generally advised to steam less frequently or avoid it to prevent irritation.
• Steaming sessions should last about 5 to 10 minutes, ensuring the steam is not too hot to avoid irritation.

So adjust the frequency to your skin's needs and how it reacts to steaming, aiming for around 1-3 times per week at most.