Red Facial Rashes Flashcards
what is seborrheic dermatitis?
inflammatory reaction to malassezia yeast that thrives on seborrheic skin
what do skin lesions look like in seborrheic dermatitis?
erythematous scaling patches
where do patches occur in seborrheic dermatitis?
scalp, hairline, eyebrows eyelids central face nasolabial folds external auditory cancls central chest
what part of the chest is affected with seborrheic dermatitis?
central chest
what can happen to skin color in seborrheic dermatitis?
can become hypopigmented
what is the bug in seborrheic dermatitis?
malassezia
how to treat seborrheic dermatitis? 2 options
low potency steroid or ketoconazole cream
if an infant comes in with diffues yellowish greasy scaling on scalp…what do they have? what causes it ?
infantile seborrheic dermatitis..cradle cap
caused by malassezia too
what is rosacea?
reddening of the mid face including the nose and cheeks mainly
what should not be there in rosacea?
comedones
what does skin look like in rosacea?
erythema wth telangiectasias and maybe some papules or pustules
what is a more severe form of rosacea that can occur?
rhinophyma.
what is rhinophyma?
dermal and sebaceous gland hyperplasia in rosacea
what three things often cause rosacea to flare?
alcohol
sunlight
hot/spicy foods
what is treatment for rosacea?
long term use of metronidazole of sulfur cleansers
plus
oral antibiotics for pustular and papular types
is rosacea always just erythematous cheeks and nose?
no…can have papules and pustules too
if you have severe rosacea what can be considered for treatment?
isotretinoin
what is a complication with rosacea?
ocular rosacea
what type of rosacea is it when it is only erythematous in the perioral area?
perioral dermatitis
what usually precedes perioral dermatitis? what is the other name for this?
steroid use…steroid rosacea
what is treatment for steroid rosacea?
tetracycline or macrolide
what does SLE rash not affect that rosacea does?
the nose
what type of reaction is allergic contact dermatitis?
delayed type hypersensitivity
what is treatment for allergic contact dermatitis?
desonide cream
what is irritant contact dermatitis?
direct skin toxicity from a substance…unrelated to immune response or allergy…everyone gets it
name some common irritant contact dermatitis causes?
detergents
harsh chemicals
frequent hand washing
what age group does acne rosacea present in ?
30 and 40s
