Acne + rosacea Flashcards
(24 cards)
What is mild acne?
scattered papules and pustules
What is moderate acne?
papules, pustules and mild atrophic scarring
What characterises severe acne?
significant scarring, papules, pustules, cysts and nodules
What topical treatments can be used in acne?
benzoyl peroxide
antibiotics eg clindamycin
retinoids eg adapalene
What simple systemic agents can be given in acne?
antibiotics eg lymecycline
COCP eg dianette
What COCP should be avoided in acne?
progesterone only pill
What are the side effects of isotretinoin?
dry, fragile skin hyperlipidaemia abnormal LFTs teratogenic mood alteration
What are the subtypes of rosacea?
inflammatory eg. papules + pustules
flushing
telangiectasia
What are the complications of rosacea?
ocular: blepharitis/ conjunctivitis
rhinophyma
How can rosacea be managed?
avoid triggers
topical metronidazole or sulantra
oral antibiotics
laser for telangiectasia
What is rosacea?
chronic relapsing/remitting disorder of blood vessels and pilosebaceous units of the central face
What is the mechanism of benzoyl peroxide?
anti-comedonal
anti-microbial
anti-inflammatory
What are the side effects of benzoyl peroxide?
erythema
peeling
stains clothes + bedding
What action do topical retinoids have?
anti-comedonal
anti-inflammatory
What are the side effects of topical retinoids?
stinging
peeling
irritation
erythema
Which 3 topical antibiotics can be used in acne?
clindamycin
tetracycline
erythromycin
How does the COCP help acne?
oestrogen increases sex hormone binding globulins which mops up free androgens to decrease sebum production
oestrogen and cyproterone acetate decrease androgen production by the adrenals
How long does it take the COCP to decrease acne?
6 months to reduce sebum
How is mild acne treated?
topicals only
How is moderate acne treatment?
topicals + oral contraceptive/ antibiotic
How is severe acne treated?
isotretinoin
When is the peak incidence of rosacea?
30-40
How is rosacea distinct from acne?
normal sebum excretion
no comedones
What are the 3 most important clinical features in rosacea?
papules, pustules and erythema
