AAFP Board Review: Managing Common Cutaneous Manifestation Problems - 2021 Updated Edition with High- Yield Clinical Cases well defined border with central clearing - ANSW-tinea corporis Pruritic, purple, polygonal planar papules and plaques (6 P's) - ANSW-lichen planus Rx topical steroids, calciptriene (Dovonex), UV B, methotrexate, anti-TNF (infliximab) - ANSW- psoriasis bullae move laterally is what sign - ANSW-Nikolsky + nikolsky sign think - ANSW-pemphigus vulgaris Bad! target lesion Dx - ANSW-erythema multiformevesicles w ery base successive crops, single dermatome - ANSW-zoster vesicles ery base Dx not crops but all over - ANSW-small pox Rx zoster - ANSW-Valtrex 1 g TID X 7d Rx narcs, Neurotin, Lyrica, tricy, sympathetic nerve blocks - ANSW-postherpetic neuralgia herpes zoster vaccine (inactivated), give 2 mo apart - ANSW-Shingrix Rx Permethrin 5% for - ANSW-scabies flexor surface papules Dx - ANSW-atopic dermatitis Rx predisone 20 mg BID X 7 d for - ANSW-rhus dermatitis Rx avoid hot tubs - ANSW-pseudomonas folliculitis boil (another term) - ANSW-furuncle many furuncles is a - ANSW-carbuncle Usual cause of furuncle - ANSW-staph aureus severe hot tub folliculitis Rx - ANSW-Cipro MRSA Rx - ANSW-Bactrim, clind, doxy. BCDnot MRSA Rx - ANSW-Keflex Cause of impetigo almost always - ANSW-staph aureus.