eczema/ dermatitis

Question 1

what type of reaction is allergic contact dermaitits

Answer 1

type IV hypersenitivity

Question 2

how long after exposure does allergic contact dermatitis present

Answer 2

24-48 hours

Question 3

how do you diagnose allergic contact dermatitis

Answer 3

skin patch test

Question 4

what commonly causes allergic contact dermatitis

Answer 4

nickel eg watch straps and jewellery // hair dyes –> weeping eczema on margin of hairline // cement

Question 5

how is allergic contact dermatitis managed

Answer 5

topical steroids in flare up

Question 6

what is irritant contact dermatitis + what causes it

Answer 6

reaction to weak acids or alkali eg soaps, nappy rash from urine

Question 7

what causes seborrhoeic dermatitis

Answer 7

fungal - malassezia furfur

Question 8

where does seborrhoeic dermatitis occur

Answer 8

sebum rich areas eg scalp, periorbital, nasalabial folds, otitis externa, blepharitis

Question 9

assoc with seborrhoeic dermatitis

Answer 9

HIV, parkinsons

Question 10

mx seborrhoeic dermatitis scalp

Answer 10

1 = zinc or tar shampoos // 2 = ketoconazole // 3 = selenium sulphide + topical steroids

Question 11

face + body management seborrhoeic dermatitis

Answer 11

topical antifungal eg ketoconazole // topical steroids

Question 12

where does seborrhoeic dermatitis occur in kids

Answer 12

scalp (cradle cap) , nappy area, face, flexures

Question 13

symptoms seborrhoeic dermatitis in babies

Answer 13

cradle cap early sign - red rash with yellow scales

Question 14

when does seborrhoeic dermatitis tend to resolve in kids

Answer 14

8 months

Question 15

mx seborrhoeic dermatitis kids

Answer 15

topical emolliant // topical imidazole

Question 16

who gets periorificial dermatitis + what can cause it

Answer 16

women 20-45 // topical or inhaled steroids

Question 17

symptoms seborrhoeic dermatitis

Answer 17

red, clustered papules, vesicles, pustules // around mouth but usually away from lips

Question 18

mx periorificial dermatitis

Answer 18

NO steroids // oral or topical abx

Question 19

when does eczema usually present

Answer 19

<2 years

Question 20

symptoms eczema

Answer 20

itchy, red rash // flexor surfaces affected // dry skin // atopy

Question 21

where does eczema in young kids usually develop

Answer 21

face, trunk, extensors

Question 22

1st line mx eczema

Answer 22

avoid irritants, emollients, topical steroids, wet wrapping

Question 23

how should emollients and steroids be applied

Answer 23

emollient first (250g/week), wait 30 mins, apply steroid

Question 24

2nd +3rd line mx eczema

Answer 24

immunosuppressants eg ciclopsorin // phototherapy

Question 25

what is pompholyx

Answer 25

eczema of hands and feet

Question 26

what can exac pompholyx

Answer 26

humidity and high temps

Question 27

symptoms pompholyx

Answer 27

small blisters on palms and soles, vv itchy, burst --> dry and cracked

Question 28

mx pompholyx

Answer 28

cool compress, emollients, topical steroids

Question 29

what are the increasing potency of topical steroids

Answer 29

hydrocortisone --> eumovate --> betnovate or fluticasone --> dermovate

Question 30

fingertip unit for hand and fingers

Answer 30

1

Question 31

what is eczema herpeticum

Answer 31

skin infection from HSV1 in eczema

Question 32

symptoms eczema herpeticum

Answer 32

monomorphic, punched our legions, rapidly spreading