Phototherapy is used to treat a variety of skin diseases and conditions, most commonly psoriasis. SLUCare dermatologists offer both UVB and PUVA as treatment options.

  • A patient undergoes UVB therapy.UVB
    This treatment involves exposing the skin to a specific wavelength of ultraviolet light that is therapeutic for psoriasis. Phototherapy light boxes produce UVB artificially to suppress psoriases.
  • PUVA
    In this treatment, psoralen, a plant extract, is combined with exposure to ultraviolet light to treat psoriasis on the whole body or on isolated sites such as the hands and feet. PUVA clears psoriasis for more than 85 percent of patients who use it, and results in long remission times, even without maintenance therapy.


Iontophoresis is used to treat excessive sweating (hyperhidrosis) of the hands and feet. Depending on the area to be treated, a patient's hands or feet are placed into water. A gentle current of electricity passes through the water.

A SLUCare technician then carefully and gradually increases the electrical current until the patient feels a light tingling sensation. The therapy lasts about 10 to 20 minutes and requires several sessions.


SSM Health Saint Louis University Hospital - South Campus
1755 S. Grand Blvd., 1st Floor
St. Louis, MO 63104
(314) 256-3400

SLUCare Des Peres (Medical Arts Pavilion II)
2315 Dougherty Ferry Road, Suite 200 B
St. Louis, MO 63122
(314) 977-9711