It is always important to distinguish between pyotraumatic dermatitis from pyotraumatic folliculitis, which can be done by observing the satellite lesions of papules or crusts indicating folliculitis, when surrounding apparently normal area is shaved.
Global and South African guidelines for the use of systemic isotretinoin are: grade IV (nodulocystic or conglobate acne); scarring acne; lesser grades of acne not responsive to at least 3 months of oral antibiotics combined with a topical retinoid, or at least 4 cycles of hormonal therapy in females; dysmorphophobic patients; and Gram-negative folliculitis. In Europe there are severe restrictions on its use.
Five (2.5%) patients had prurigo of pregnancy, 4 (2%) had dermatoses associated with Intrahepatic Cholestasis of Pregnancy (ICP), 3 (1.5%) patients had polymorphic eruption of pregnancy, and 1 (0.5%) patient had pruritic folliculitis of pregnancy.
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