Dermatology

Question 1

What is the steroid ladder for management of eczema acute exacerbations?

Answer 1

Hydracortisone –> clobetasone –> betamethose –> clobetsol

Question 2

What is the prognosis for childhood eczema?

Answer 2

50% resolve by 12

75% resolve by 16

Question 3

What is the pattern of skin lesions in impetigo?

Answer 3

Usually starts as erythematous macules that become vesicular/pustular or bullous, beginning as flaccid blister that rapidly ulcerates. The exudate produced dries as a golden-brown crust over the red itching skin beneath

Question 4

What is the causative organism of impetigo?

Answer 4

Staph aureus or beta-haemolytic strep.

Almost exclusively S.aureus in bullous form

Question 5

How is impetigo managed?

Answer 5

Fusidic acid. Mupirocin for MRSA carriers.
If severe, PO flucoxacillin.
Avoid towel sharing or itching.

Question 6

What differentiates the 3 main forms of nappy rash (contact dermatitis, candida, superimposed bacterial infection)?

Answer 6

Contact dermatitis: erythema sparing the skin folds, borders ill defined
Candida: erythema, well-defined borders, skin folds are not spared, satellite lesions
Superimposed bacterial infection: purulent

Question 7

Where are red nodules of erythema nodusum usually seen?

Answer 7

Patients commonly have multiple discrete large, red, hot tender nodules on shins

Question 8

What is the treatment of scabies?

Answer 8

Permethrin 5% cream