Dermy quick

Question 1

SJS causes

Answer 1

Penicillin, sulphamides, allopurinol, NSAIds, COCP, lamotrigine, carbamazepine

Question 2

Sedating antihistamine

Answer 2

Chlorpenamine

Question 3

Scabies

Answer 3

Premethrin first
mathalion second
]Ivermectin if really bad

Question 4

What can’t isotretinoin be used with

Answer 4

Tetracyclines

Question 5

Auspitz vs Koebner vs nikolskys

Answer 5

Auspitz - pinpoint bleeding with scales are scraped off

Koebner - psoriatic lesions developing at trauma sites

Nikolskys - sloughing

Question 6

Eczema herpticum

Answer 6

IV ACYLOVIR!!!!
HSV

Question 7

Rosacea treatment

Answer 7

Predominantly ethrymea/ flushing - topical bromine gel

Mild - moderate pustules etc - topical ivermectin

Severe - + doxycycine

Question 8

Seborrhoeic dermatitis

Answer 8

Malassezia fur
Eczematous lesions, scalp, periorbital

HIV

Ketronazole

Can get otitis external and blepharitis

Question 9

Lichen planus

Answer 9

Immune mediated,
itchy, papular rash on palms, soles, genitals, flexor

—-> potent steroid

Question 10

Lichen sclerosis

Answer 10

Genitalia
Higher risk of getting HSV

Question 11

Things that can cause a psoriasis exacerbation

Answer 11

Trauma, alcohol, b blockers, lithium, trauma, ACEI, withdrawal of steroids, NSAIDS

Question 12

Impetigo treatment

Answer 12

Hydrogen peroxide 1% or topical fusidic acid

Bullous = fluclox

Question 13

Lichen sclerosis increases risk of?

Answer 13

uval cancer

Question 14

Erythema multiforme causes

Answer 14

HSV, mycoplasma, penicillin, allopurinol, NSAIDs, COCP, SLE, sarcoid, malignancy

Question 15

Erythema multiforme major

Answer 15

Mucosal involvement
—> analgesia and steroids

Question 16

Erythema nodosum

Answer 16

Subcutaneous fat inflammation
Resolves within 6 weeks
Infection, strep throat, TB, COCP, NSAIds, penicillin, IBD, sarcoid, lymphoma, leukaemia, pregnancy

Resolves in 6 weeks

Question 17

Fungal nail

Answer 17

Terbinafine

Itracanazole

Question 18

HHT

Answer 18

Epistaxis, telangiectasia, visceral lesions, 1st degree relative

Question 19

Dermatitis herpetiformis

Answer 19

IgA
Coeliac disease
Itchy, vesicular rash on extensor surfaces
Skin biopsyy
—> gluten free diet, dapsone

Question 20

Cellulitis

Answer 20

Strep pyogens
Shins, unilateral
Oral fluclox

later— admit

Question 21

Guttate psoriasis

Answer 21

Streptococcal infection 2-4 weeks prior to lesions appearing

Tear drop papules on trunk and limbs
Most cases resolve after 2-3 months

Question 22

Pityriasis rosacea

Answer 22

Herald rash- fir tree appearance
HHV
Followed 1-2 weeks later by multiple oral lesions
Self limiting, resolves in 6 weeks

Question 23

Athletes foot

Answer 23

Tichophyton fungi
Imidazole topical then oral if fails

Question 24

SCC margins

Answer 24

4mm if <20
6mm if >20

Question 25

Bullous pemiphoid vs pemphigus vulgarise

Answer 25

Bullous - subnormal blistering of the skin, itchy and tense blisters. Heal without scarring. no mucosal involvement ORal corticosteroids. Skin biopsy shows igG an dc3 Pempi vulgaris -autoimmmune, mucosal ulceration, steroids and immunosuppression

Question 26

Fluid resuscitation

Answer 26

4 * TBSA * body weight

Question 27

Ludwigs

Answer 27

Neck swelling, dysphagia, fever Airway + ABX

Question 28

Molluscum contagiosum

Answer 28

Small flesh coloured papules, central dimple Crops Refer if eyelid margins, HIV positive or anogenital

Question 29

Pyoderma gangrenous

Answer 29

Painful skin ulceration Often lower legs Deep adn necrotic Oral steroids,

Question 30

Pyogenic granuloma

Answer 30

Resolves post party if from pregnancy Curettage otherwise

Question 31

KEratocanthoma

Answer 31

Urgent excision as could be an SCC!

Question 32

Lyme disease within 30 days? after 30 days?

Answer 32

Bulls eye rash, erythema migraines Develops 1-4 weeks after initial bite but may present sooner Usually painless, >5cm and grows Headache, lethargy, fever, arthralgia. After 30 days - CVD, neurological - facial nerve palsy, meningitis Start doxycycline if you see erythema migraines ELISA antibodies to Borelia burgflofen

Question 33

Prominent talengtasia in rosacea treatment

Answer 33

Laser therapy

Question 34

Acne mild/ moderate therapy?

Answer 34

Topical combination therapy for 12 weeksM

Question 35

Acne moderate/ severe therapy

Answer 35

Similar to 12W trial, often adding oral tetracycline. Cant use just an ABX - remember always 2!

Question 36

Polymorphic eruption of pregnancy

Answer 36

Periumbilical sparing

Question 37

Psorasis Treatment

Answer 37

4 week break between topical corticosteroid courses Potent corticosteroid OD and vitamin D analogue OD 4 weeks If no improvement after 8 weeks do vitamin D BD If no improvement after 8 weeks do corticosteroid BD

Question 38

Face, flexural or genital psoasis treatment

Answer 38

Corticosteroids for 2 weeks