New treatments continue to be developed for psoriasis. In this review, we aim to summarize the results of the major published studies on biologic and small molecule drugs for the treatment of psoriasis. We emphasize the safety, efficacy, and tolerability of these treatment options. A review of the MEDLINE database was conducted for each class of medication. Randomized controlled trials were identified for each medication; data on efficacy, safety, and tolerability were reviewed. Biologic and small molecule treatment options are more effective than placebo, although there were few head-to-head trials to assess relative efficacy between biologics and small molecule treatments. These drugs offer favorable safety profiles with only rare serious adverse events reported. Biologic and small molecule drugs offer diverse therapeutic regimens, particularly in patients with recalcitrant disease.

Burns to the buttocks of a child are highly concerning for child abuse unless there is a clear history to support an alternative diagnosis. We report two cases of severe erosive diaper dermatitis presenting as buttocks and perineal burns caused by prolonged exposure to diarrheal stool. These cases underscore the importance of making the right diagnosis to avoid the undue psychosocial stress to families that comes with a mistaken diagnosis of inflicted injury, and further add to our understanding of diarrheal contact burns in the absence of laxative use.

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