Seborrheic dermatitis is a common, chronic, relapsing inflammatory skin disorder that manifests as erythema, scaling and pruritus in sebum gland-rich areas of the skin. The objective of this article is to evaluate the clinical efficacy of pimecrolimus 1% cream in the treatment of seborrheic dermatitis compared with corticosteroids, antimycotics, placebo or no intervention. Pimecrolimus 1% cream appears to be a well-tolerated and effective treatment for seborrheic dermatitis. It has comparable efficacy, in terms of decreasing severity of erythema, scaling and pruritus, to the standard treatments: topical corticosteroids and antimycotics. However, future studies with more standardized measures of treatment outcome are recommended. More studies may also be conducted to further evaluate pimecrolimus 1% cream as a long-term maintenance therapy for seborrheic dermatitis.

Mutations in the different keratin genes have been shown to underlie a wide range of disorders of keratinization. Epidermolytic hyperkeratosis and ichthyosis bullosa of Siemens are distinct disorders with mutations in different genes. Although molecular genetic testing should ideally be done for confirmation of diagnosis, ichthyosis bullosa of Siemens could be diagnosed in this patients based on key clinical characteristics.

Erythema multiforme is an acute, self-limiting, mucocutaneous hypersensitivity reaction characterized by distinctive target lesions. Most cases have been attributed to infection. Erythema multiforme occurs mainly in young adults and is extremely rare during the neonatal period. We report a 25-day-old girl who presented with target skin lesions on both the palms and soles with no other associated symptoms. She had no remarkable maternal, birth, or past medical history. Complete blood count, urinalysis, chest radiography, and herpes simplex virus 1 and 2 immunoglobulin G (IgG) titers revealed no abnormalities. Pathologic examination showed vacuolar interface change and dyskeratotic cells in the epidermis consistent with erythema multiforme. This unusual case emphasizes the importance of recognizing diagnostic clues in examining patients. Even in the presence of uncharacteristic factors, the typical target lesions of erythema multiforme are distinctive.