Derm

Question 1

what can tinea corporis get confused with

Answer 1

think of nummular eczema (this is filled in with scales, as opposed to tinea corporis)

Question 2

eczema: what tx stages to think about

Answer 2

1. dry skin–lotion
2. itchy–benadryl
3. inflamed–topical steroids bid

(try low dose hydrocortisone, then med dose triamcinolone, then calcineurin inhibitor for >2 (eg tacrolimus)

4. infected: abx/acyclovir (worry about mrsa and eczema herpeticum)

Question 3

erythema multiforme

-what causes to look for?

Answer 3

viral: HSV

drug induced

autoimmune

Question 4

pityriasis rosea

-tell what to pt/family

Answer 4

no tx, resolves in 6 weeks

christmas tree pattern usu 1-2 weeks after initial herald patch

looks like orzo

Question 5

Chickenpox

• tx, when to give acyclovir
• precautions
• when is chickenpox vaccine given?

Answer 5

antihistamines and calamine lotion

Acyclovir if very young, comorbidities, severe dz, adults

precautions: avoid pregnant women, elderly, very young, immunocompromised
- vaccine at age 1

Question 6

Tinea capitis can progress to what?

-what to be aware of, how to tx

Answer 6

Kerion

• boggy scalp lesion, hair falls out
• do NOT I+D!
• systemic antifungal (eg griseofulvin)

Question 7

phytophotodermatitis

• what is it
• tx

Answer 7

inflamm rxn when light hits psoralen (found in citrus, wild carrots, etc)

• child abuse mimic
• OTC analgesia, sunblock, topical steroids

Question 8

impetigo

-what tx among topical abx

Answer 8

-Bactroban (mupirocin), not Bacitracin

bactroban covers MRSA, bacitracin does not

Question 9

Sutures for peds:

• face
• hand/finger/scalp

Answer 9

face: 6-0 vicryl rapide or fast gut. x5 days, can tell parents to moisten gauze then remove

hand/finger/scalp: 5-0 chromic gut or vicryl rapide