Cutaneous infections Flashcards
2 big bacteria and what they cause
Staph. A - impetago - furuncles - carbuncles - folliculitis - cellulitis - peronycia Strep - impetigo - erysipelas - cellulitis
what is impettago
- common and supeficial
- very contagieous
- face of children
Tx for impetigo
- swab for C+S
- saline compress to remove crust
- bactroban topical
what is a furuncle
- boil - deep follicular abscess
- painful, red nodule that may suppurate
- S. Aureus
Tx
- C+S
- bloods if febrile
- incise and drain
- PO ABx if systemic
what is superficial folliculitis
- superficial yellow-white pustules with follicular openings
- dev. in crops and heal quickly
- Staph
- anti-bacterial wash
what is cellulits
- infection of subcutaneous tissue
- often due to trauma - tinea pedis common
- expanding erethyma, mild edema, tenderness
what is Tx for cellulitis
- C+S
- IV pen or 1st gen ceph
what is paronychia
- inflammatory reaction of the nail fold
- purulent and swollen nail fold
- incise and drain with PO ABx
what is erysipelas
- st. anthony’s fire -PAIN
- expanding painful swelling across face
- infection of the superficial lymphatics
- strep
- ## fever and mailaise
Tx of eryse
- mild with cloxavillin
- is severe admit for IV ABx
3 main types of viral infections
- herpes
- herpes simplex
- varicella - HPV
- molluscum
presentation of herpes
grouped vesicles on an erythemaous base
what is HSV1
- cold sores
- grouped vesicles on the lips near the vermillion
- prodrome of up to 24 hours
Tx of HSV1
- prevent triggers
- oral anti-virals BEFORE they appear, or little effect
2 other presentations for HSV1
- herpetic whitlow - finger
- keratoconjunctivitis - may lead to blindness
- NO STEROIDS
what is HSV2
- genital herpes
- all persons with our without Sx are infectious
- can have no Sx
- can be bad blisters for 10-14 days
Tx of HSV2
primary - oral antivirals at onset
recurrent - suppresvie daily oral antivrial
what is presentation of varicella
- chicken pox
- crops of vesicles, pustules, crusted erosions on a red base
- low grade fever, malaise
Tx of varicella
- oral acyclovir if within 24hours
- avoid ASA
what is zoster
- shingles
- VZV travels down the nerve where it has been dormant
- pain and blisters on the dermatome
Tx of zoster
anti-virals if given within 72 hours of rash onset
what are veruca
warts
types of warts
vulgaris - hands - tiny black dots
plana - flat - often on face and neck
plantar - foot in horny ring
genital - most common STD
Tx of non-genital warts
- none
- cryotherapy
- salycilic acid
- etc
Tx of genital warts
- cryotherapy
- imiquimod cream
- check of STIs
what is molluscum
caused by pox virus
- smooth, dome shaped, with central umbilication
Tx of molluscum
- none - will go away
- topical tretinoin
what is tinea capitis
- breakage of the hair
- triad of: alopecia, scaling, lymphadenopathy
- more common in children before puberty
Tx of tinea capitis
oral anti fungals
what are dermatophytoses
- fungal organisms that eat keratin
- named for where they are
- annular lesiona with scale at advancing border
what is onychomycosis
- fungal infection of the nail
what is tinea versicolor
- caused by species of yeast
- normal skin inhabitant!
- spagetti and meatballs on patho
