<\/span><\/h1>\nPatients often present with fairly mild signs when they have a facial injury<\/span> or eruption<\/span> \u2013 due to embarrassment \u2013 and diagnosis can be tricky.<\/p>\nSignificant itching suggests atopic<\/span> dermatitis<\/span> or contact dermatitis.<\/p>\n<\/span>Expensive: erosions<\/span>\/ \/crust<\/span>
\n<\/span><\/h2>\n<\/span>Herpes Simplex <\/span><\/h3>\n\n- \nMonomorphic<\/span> grouped vesicles<\/span> or crusted papules<\/span>\n<\/li>\n
- often locally recurrent<\/span> At the same place<\/li>\n
- Swabs: Herpes simplex<\/li>\n<\/ul>\n
<\/span>Herpes infection <\/span><\/h3>\n\n- \nAcute<\/span> dermatomal<\/span> eruption<\/span>\n<\/li>\n
- Painful: pain may precede the rash<\/li>\n
- \nErythema<\/span> can precede vesicles<\/li>\n
- Swabs: Shingles<\/li>\n<\/ul>\n
<\/span>Impetigo <\/span><\/h3>\n\n- Irregular enlargement license plate<\/span>\n<\/li>\n
- honey-colored crusts<\/li>\n
- Swabs: Staphylococcus aureus +\/- Streptococcus pyogenes<\/li>\n<\/ul>\n\n
<\/span>Face: erosions\/scabs<\/span><\/h5>\n<\/section>\n\n\n
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Herpes Simplex<\/p>\n
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Herpes infection<\/p>\n
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Impetigo<\/p>\n<\/p><\/div>\n<\/section>\n
<\/div>\n
<\/span>dry or scaly<\/span> eruption<\/span><\/h2>\n<\/span>\nSeborrheic<\/span> dermatitis <\/span><\/h3>\n\n- Often also affects the scalp, postauricular sites, ears<\/li>\n
- hairline, eyebrows, medium<\/span> cheeks, nasolabial folds, chin wrinkles<\/li>\n
- Squamous blepharitis<\/li>\n
- Ill-defined, white or variable yellowish scales<\/li>\n
- Can have erythematous<\/span> patchy or thin plates<\/span>\n<\/li>\n
- \nFollicular<\/span> follicular prominence or digitate keratosis<\/span>\n<\/li>\n<\/ul>\n
<\/span>Psoriasis <\/span><\/h3>\n\n- Eyelids, temples, retro and preauricular skin, and\/or sites of seborrheic dermatitis<\/li>\n
- It also affects the scalp, ears, elbows, knees, nail<\/span>\n<\/li>\n
- Well-demarcated<\/span> erythematous plaques<\/li>\n
- White scale<\/span>\n<\/li>\n
- More persistent than seborrheic dermatitis<\/li>\n<\/ul>\n
<\/span>Atopic