Scarring after fractional CO(2) laser therapy may be due to overly aggressive treatments in sensitive areas (including excessive energy, density, or both), lack of technical finesse, associated infection, or idiopathic. Care should be taken when treating sensitive areas such as the eyelids, upper neck, and especially the lower neck and chest by using lower energy and density. Postoperative infections may lead to scarring and may be prevented by careful taking of history, vigilant postoperative monitoring and/or prophylactic antibiotics.

A randomized, controlled, double-blind study of light emitting diode photomodulation for the prevention of radiation dermatitis in patients with breast cancer Permalink https://escholarship.org/uc/item/0jv6d41x Dermatologic Surgery, 36(12) Journal

Patients with psoriasis and chronic hepatitis C virus (HCV) infection are a therapeutic challenge. Systemic psoriasis treatment with methotrexate and acitretin can be hepatotoxic, and interferon (IFN)-alpha for treatment of HCV can worsen psoriasis. Etanercept can be successfully used in patients with psoriasis and HCV. To our knowledge, this is the first case report of etanercept used prophylactically to prevent a psoriatic flare in a patient with HCV treated with IFN-alpha and ribavirin.

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