Acne and rosacea Flashcards
What factors lead to the development of acne? (4)
Occlusion of pores
Increased sebum production during puberty
Bacterial colonization
Dermal inflammation
What defines the severity of acne?
Number of lesions as well as extent of scarring
What is the best topical treatment for mild and moderate acne?
Benzoyl peroxide
Antibiotics for ace management?
Erythromycin
Oxytetracyline
Doxycycline
Which class of drug is roaccutane?
Isotretinoin
Features of rosacea? (2)
Papules and pastules on nose, chin, cheeks, forehead
Prominent facial flushing
Triggers for rosacea? (2)
Extremes of hot, cold
Spicy food
Rosacea complications (3)
Permanent telangiectasia
Ocular inflammation
Rhinophyma
Management of rosacea (3)
Avoidance of triggers
Topical metronidazole
Antibiotics/roaccutane
Problems with benzoyl peroxide?
Mildly irritant; causes skin peeling
What can be used as treatment for acne in teenage girls?
Oral contraceptives
Dianette (also has contraceptive effect but not licensed for this)
How long should systemic treatment for acne be continued?
At least 3-4 months
Adverse effects of oral isotretinoin? (5)
Dry skin, lips, eyes Raised lipids Hair thinning Acne flare Teratogenicity
What are the functions of sebaceous glands?
Discharge sebum, which lubricates and waterproofs the skin; also mildly bacteriocidal and fungistatic
What has been suggested as a dietary trigger for acne?
High glycaemic load diets
