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→Dermatophytes
=Rosacea=
=Rosacea=
*H&P: Fair skin, light-eyed people, with history of flushing. Erythema and inflamed papules on face, nose, forehead, chin without comedones, rhinophyma (enlarged irregularly textured nose) appears late. Conjunctival injection, eyelid telangiectasias, and dry eyes are also common.
*H&P: Fair skin, light-eyed people, with history of flushing. Erythema and inflamed papules on face, nose, forehead, chin '''without comedones''', rhinophyma (enlarged irregularly textured nose) appears late. Conjunctival injection, eyelid telangiectasias, and dry eyes are also common.
*Dx: Clinical. Ddx includes acne.
*Dx: Clinical. Ddx includes acne.
*Tx: Topical metronidazole; oral doxycycline or minocycline; clonidine for flushing.
*Tx: Topical metronidazole; '''oral doxycycline or minocycline'''; clonidine for flushing.
=Erythema Multiforme=
=Erythema Multiforme=
*H&P: Pruritic, well demarcated, central clearing.
*H&P: Pruritic, well demarcated, central clearing.
*Dx: Clinical, or with KOH prep. '''Tinea capitis is erythematous, scaly, pruritic, and associated with hair loss'''
*Dx: Clinical, or with KOH prep. '''Tinea capitis is erythematous, scaly, pruritic, and associated with hair loss'''
*Tx: Oral meds for onychomycosis (terbinafine) and tinea capitis (griseofulvin, itraconazole). Topical azaleas, terbinafine, or griseofulvin for others. Selenium sulfide for tinea versicolor.
*Tx: Oral meds for onychomycosis (terbinafine) and tinea capitis (griseofulvin, itraconazole). Topical azoles, terbinafine, or griseofulvin for others. Selenium sulfide for tinea versicolor.
=Basal Cell Carcinoma=
=Basal Cell Carcinoma=