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Treatment with programmed cell death 1 inhibitors is associated with a wide range of cutaneous immune-related adverse events, with lichenoid eruptions representing one of the major cutaneous toxicities. We describe the case of an 81-year-old man with metastatic melanoma treated with pembrolizumab who subsequently developed a delayed-onset generalized lichenoid dermatitis. After failing multiple lines of systemic immunosuppression, narrowband ultraviolet B (NBUVB) phototherapy three times per week for 17 sessions resulted in a significant clinical response in his cutaneous eruption and was well tolerated. NBUVB is a safe, lower-cost modality that induces local, skin-specific immunosuppression without the toxicities of traditional systemic immunosuppressive agents. To date, this is the first report of use of NBUVB in immune-related lichenoid dermatitis resistant to multiple standard therapies.

SummaryBackground A pre-and postprocedure regime aimed at prevention of infection, reduction of inflammation and risk of scarring, is to enable optimal outcomes. Objectives The role of a hypochlorous acid containing spray and translucent scar gel formulation that combines modified silicon oil with hypochlorous acid, was explored for pre- and postprocedure treatment and scar management. Methods For this purpose a literature review was conducted to explore the value of the technology used in pre-and postprocedural regimes. A panel of dermatologists and plastic surgeons who practice in the United States discussed the summarized search results, taking into account their current clinical practice. A nominal group process for consensus was used, followed by online reviews of the manuscript. Results Based on panel discussions, consensus was reached regarding clinical recommendations given for postprocedure treatment and scar management. The hypochlorous acid products are produced with electrolysis and are classified among biocidal substances. The technology has demonstrated efficacy and safety for pre-and postprocedure use. The safety of hypochlorous solution use demonstrated to be comparable to that of standard local antiseptics. Small studies demonstrated better results with the scar gel compared to silicone gel regarding the appearance of hypertrophic and keloid scars, relief of associated pruritus and pain. Conclusions A postprocedure regime using this technology, aimed at preventing infection, reducing inflammation, and promoting healing is proposed to have benefits over current regimes as it appears to be effective, safe, and well tolerated.

pPsoriasis is a chronic inflammatory cutaneous disease that affects 2-3% of the general population. Up to 30% of patients with psoriasis also develop psoriatic arthritis, a chronic inflammatory and progressive arthritis. Although their precise pathogeneses remain unclear, psoriasis and psoriatic arthritis involve altered expression of proinflammatory cytokines, including tumor necrosis factor-α, interleukin (IL)-12, IL-17, IL-22, and IL-23. The development of biologic agents that target these cytokines has greatly improved the treatment of psoriatic disease. Injection site reactions have been reported with many of these therapies. In this paper, we will present cases and review the literature on injection site reactions with the major biologic agents administered subcutaneously for the treatment of psoriasis and psoriatic arthritis./ppemJ Drugs Dermatol. 2017;16(7):695-698./em/p.