Background: Although there are effective dermatological treatments for psoriasis, a proportion of individuals also experience psychological distress not addressed by these treatments. Psychological factors may be targeted by cognitive behavioral therapy (CBT) which may in turn also decrease psoriasis severity. Method: A systematic review using PsycINFO, PubMed, and SCOPUS databases was performed in 2019 to examine the efficacy of treatments that delivered psychotherapy with a major cognitive/behavioral component to patients with psoriasis. Quality of included studies was assessed. Results: Nine randomized controlled trials with 8 unique samples met inclusion criteria. Study quality ranged from fair to good. Half of the studies found improved psoriasis severity following treatment. Several studies found improvements following treatment in anxiety, depression, and stress. The studies that reported non-significant findings on psychological outcomes had samples with healthy baseline psychological functioning. Nearly all studies that examined quality of life as an outcome found improvements following treatment. Conclusion: CBT as an adjunct to conventional dermatological treatments may be particularly beneficial for individuals with more severe pretreatment psychopathology in improving psoriasis severity, anxiety, and depression symptoms. CBT appears to be generally effective in improving quality of life. Greater methodological rigor is needed in future research.
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