Seborrheic dermatitis responds to low-potency corticosteroids and/or ketoconazole 2% cream. Sulfur-based products are effective but are less acceptable cosmetically. Recalcitrant disease may benefit from off-label use of topical tacrolimus or pimecrolimus. Medicated shampoos containing zinc pyrithione, tar, selenium sulfide, or ketoconazole can be used regularly until the dermatosis is controlled and then can be used several times a week to help prevent recurrences.
Pityriasis Rosea
Because the condition is self-limited, no treatment is needed; however, mid-potency topical corticosteroids, with or without oral antihistamines, may lessen pruritus.
Treatment of EM is primarily symptomatic. Systemic corticosteroids may provide symptomatic improvement but may be associated with complications. Antiviral therapy does not shorten the EM outbreak in HSV-associated cases, but continuous prophylactic antiviral therapy may help prevent further episodes.
