Expert Commentaries
When I was a resident, I was trained not to use systemic steroids in psoriasis patients for the reasons noted above, and I have faithfully followed these instructions 9 years into practice. However, I see many patients with severe psoriasis who are given systemic steroids by other physicians (ie, rheumatologists for psoriatic arthritis, pulmonologists for asthma). I often tell patients afterwards of the dangers of systemic steroids and to have them tell their other doctors to be cautious when giving another course of systemic steroids. However, I have yet to see a generalized pustular psoriasis outbreak or flare in psoriasis vulgaris after a course of systemic steroids. While I do not recommend systemic steroids for psoriasis patients since we have so many other systemic agents, I wonder if the risks that we were all trained about are really that high.
—Jashin J. Wu, MD (Los Angeles, California)
How bad is it to give patients with psoriasis systemic steroids? Are psoriasis patients treated with systemic steroids likely to get a pustular flare? Are patients with psoriasis who suddenly stop their corticosteroids more likely to get a pustular flare than psoriasis patients who suddenly stop other systemic psoriasis treatments? I don't have the answers to these questions. My sense is that we have a lot of dogma and strong opinions but very little hard evidence to answer these questions.
I don't typically prescribe systemic steroids to psoriasis patients, but systemic steroids are widely used. Sometimes there are problems. I have seen patients who received systemic steroids for psoriasis and who went on to have a pustular flare, but it's possible the systemic steroid was given because those patients were headed toward the pustular flare already.
I once had a psoriasis patient who came to see me with a suddenly inflamed tender joint. Not knowing what to do, I called a rheumatologist to see the patient. The rheumatologist, too busy to work the patient in, told me to give the patient a 2-week prednisone taper. I did, and nothing untoward happened with the psoriasis. This one anecdote doesn't give me much confidence that systemic steroids are safe for psoriasis patients.
Clearly, long-term steroids cause a host of problems (eg, osteoporosis, diabetes). But I'm not sure that the dogma that systemic steroids should be avoided in patients with psoriasis is well supported. Systemic steroids are being widely used, and I don't see an epidemic of pustular flares.
Is it a mistake to give systemic steroids to psoriasis patients? I just don't know.
—Steven R. Feldman, MD, PhD (Winston-Salem, North Carolina)