NANCY BERNSTEIN: I found that I had to apply them to large areas of my body, and they usually come in a very small tube, so you wind up spending a lot of money and time trying to get, you know, enough medication to put over a large area.
PAUL YAMAUCHI, MD: For people with extensive psoriasis, it can be cumbersome to put topical creams all over their body. Patients tell me that it takes them like an hour a day just to put the creams on if they've had extensive psoriasis.
ANNOUNCER: Light therapy can serve as serve as an effective alternative. There are various forms of light therapy such as laser therapy, narrow band UVB, broad band UVB, and PUVA. PUVA is the most widely used. Although effective, it is still not without complications.
JERRY BAGEL, MD: You have to take pills before you come in for the light treatments and there's an increased frequency of skin cancer after 150 PUVA treatments. So the risks are greater, although you do get an average of six months of clearing after 30 treatments of PUVA, you still have to come in three times a week for PUVA treatments.
NANCY BERNSTEIN: I used to go two or three times a week before work, so I would have to get dressed in the morning, go in there, get undressed, do the treatment, get dressed again, go in to work.
ANNOUNCER: Systemic medications are another line of defense.