Derm- Infections Flashcards
What is Impetigo?
common acute superficial bacterial infection
bacteria in impetigo?
staph aures
treatment in impetigo?
Topical antibacterial (fucidin)
oral antibiotic (flucloxan)
what is Molluscum contagiosa
common benign skin self limiting infection
reassure
cause of Molluscum contagiosa?
Molluscipox virus
how does molluscs present?
pearly papules
umbillicated centre
Molluscum contagios transmission?
to close direct contacts
if concerned about Molluscum contagios, what treatment
5% potassium hydroxide
cause of viral wart?
HPV
transmitted by direct contact
treatment of viral wart?
No treatment
but can do:
salicylic acid and paring
cycotherapy
90% resolve in 24 months
common viral exanthema?
chicken pox measles rubella Roseola (herpes virus 6) Erythema infectiosoma (paravirus B19)
chicken pox virus?
presentation?
varicella zoster
red papules (small bumps) progressing to vesicles (blisters) often start at trunk
itchy
Parvo virus (slapped cheek)
erythmetous rash cheeks initially
then lace like rash
can take 6 weeks to fully fade
virus targets red cells in bone barrow
potential complication of Parvo virus?
aplastic crisis (if haemolytic disorders) risk to pregnant women (spontaneous abortion, intrauterine death, hydros fettles)
what is the hand, foot and mouth virus?
enterovirus
usually coxsacki A16
Presentation of hand, foot and mouth?
when?
blisters on hand, foot and mouth
late summer, autumn months
eczema coxsakium
associated viral symptoms (in all of viral skin infections)
history of eczma
flared sites o areas of eczema
self limiting
eczema herpteicum presentation?
treatment?
unwell child
history of eczma
monomorphic punched out lesions
withhold steroids for 24 hours
Aclicover oral or IV
Ophthalmology review if near eye
7 year old
feeling generally unwell, poor appetite
history of eczema and asthma
usually well controlled
diagnosis?
what do next?
Eczema herpeticum
if unwell admit
viral swabs- lesional
Acliclover- immunosuppressed dosed
hold topical steroid until done >24 hours of acliclover
50:50 as emoilient
analgesia