Rashes 2 Flashcards
What is erythema multiforme caused by?
Herpes virus
What to always ask pt before stating Benadryl or doxepin HS
Any balance issues?
What tx for eyelid dermatitis
Aquaphor at night
If itches - give Protopic 0.03?
Tachyphylaxis
Diminishing response to drug
Diminishing response to drug
Tachyphylaxis
Which drug not to use for Hair Loss in male with prostate cancer
Propecia (finasteride)
LPP tx
Can try topical Betamethasone lotion on scalp
If not improvement, start Doxy 100 qHS with dinner and sunscreen
PLUS
IL Kenalog (half Ken, half saline) - inject at 90 degrees 1 cm apart
RTC in 8 weeks
Which oral med for Bullous Pemphigoid (BP)>
Standard tx:
Doxy 100 BID with SS and food
Plus
Topical Clobetasol compounded in aquaphor (wrap bad areas in seran wrap)
If no improvement/refractory:
Prednisone
What is chilblains
Redness and swelling of toes hands feet nose ears and face due to cold
Especially in kids
Ask about which recreational activity in pt presenting with itch?
Do you smoke? (Cancer)
If SCCis and BBC superficial to edge in the same location (dorsal hand) - how to tx
Aldara
Can’t do bx when pt just finished FUDEX or Aldara for how long?
For 2 weeks (till skin calms down)
If SCCis to base, how to tx
Always excise or MOHS (because could be deeper than SCCis)
SCCis to edge, how to tx
EDC
Aldara is indicated for
BCC (SUPERFICIAL Only)
And AKs
Angular cheilitis is also called
Perleche
How long is Aldara tx
For BCC: M-F x 6 weeks qHS
For AK: 2 weeks on/2 weeks off/2 weeks on
Only 80% of ppl respond and flu like sx in 1 %
Can FUDEX be used on SSCis
Yes, x 3-4 weeks, but not FDA approved
Or for 6 weeks per JOB, check at 1 month after stopping
Besides FUDEX, what other tx for AKs
Solarace (3% diclofenac) BID x 12 weeks
Picato qHS x 3 days
PDT blue light
Aldara
Which SCC requires URGENT MOHS?
MODERATELY differentiated AND immunocompromised pt
Tx of MM to base
Any depth to BASE is going to plastics
Furfuraceous meaning
Fluffy scales
Oral tx for TINEA versicolor and directions
Intraconaze 200 mg QD x 5 days and.
And tell pt to sweat 30 min after taking pill
Maintenance: same BID once per month
S/I congestive heart failure
SE neuropathy Liver
Or FLUCONASOLE 400 once and repeated monthly
What recreational activity makes dyshydrotic eczema worse?
Smoking
Also stress and sweating
Tx of Nodular BCC to base and edge
EDC ok if small
Excise if big
Oral tabs for scabies
Ivermectin
If not responding to permethrin?
Which labs to order for itchy rash, when ddx BP
BP 180 (IgG antibodies) (more sensitive) BP 230. CBC CMP ANA
Cicatricial meaning
Scarring
What strength of Kenalog for face pimple
2.5 mg Kenalog: mix .1 Kenalog with .3 saline (total .4)
At 30 degree angle till blanches
Less than 0.1 cc
Pt presents with hand rash, where else to always check
Feet - TINEA pedis can cause ID reaction on hands (as dyshydrotic eczema or degeralized dermatitis)
What to always tell pts with psoriasis of scalp - pt education
Be gentle when washing hair and when cloning hair
Scalp psoriasis tx
Betamethasone lotion BID x 2 weeks
PLUS
TGel (to decrease redness and itch) and T SAL (helps with crusting)
Alternate shampos - wash hair every day!
If not better, IL Ken, if not better, ECZEMER laser(scalp, hands, feet)
Pt presents with thick, well demarcated plaques, where else to look
Elbows, knees, butt
Doxy is used for
LPP
Hydradenitis Supporativa
Bullous Pemphigoid
Oral med for LPP
Doxy
Oral med for LP not responding to regular tx
Flagyl (can’t drink)
Does frontal fibrosing alopecia (FFA) ever go away
FFA cause
Yes but not sure when
Cause is unknown. It;s inflammation of hair follicles which eventually leads to permanent hair loss (so best to tx it on)
Best tx for FFA and LPP
IL kenalog to prevent permanent hair loss but it’s not a cure - have to come back every 6 weeks?
IL kenalog lasts couple of mounths
For LPP - DOxy
But not for FFA?
Another tx option for scalp psoriasis
Eczemer laser
Start tx with Beta lotion BID, TGEL and TSAL, RTC in 6-8 wks
If not better, IL Ken and RTC 6-8 wks
In not better, then make sure NOT picking and Eczemer laser
If not better, compound betameth in olive oil, shower cap overnight, and compound TSAL with 6 % SA
How to tx benign angiomas?
Vascular laser
There is chance they will come back
Or Electrocautery for cherry angiomas
Scalp sores that won’t heal after procedures
Chronic erosive pustulosis of scalp
Why people get skin cancer
Due to sun damage - DNA mutations accumulate in skin
And due to senescence - our immune system weakens as we become older (we don’t need a PNA vaccine at 30, but at 60)
When pt with h/o of aggressive skin cancer presents with a new lipoma like bump on body - do what
Send to oncology for PET scan and fine needle aspiration (of what - lymph node?)
Pt who had a lipoma on right posterior scalp With ho of invasive SCC
Tx for TINEA pedis
Common name for t pedis
Lamisil (terbinafine) otc
Athletes foot
Hand dermatitis that’s not improving on topical steroids and histamines - what to do next
Patch testing: nickel and balsam of Peru
If allergic to nickel, may be ingesting nickel through legumes
If allergic to balsam of Peru, ingesting cinnamon, baked goods
RTC 6 weeks
Pt presenting with lipoma or a skin cyst/bump, ask what?
Any history of cancer or skin cancer?
Dolls eye
Toothbrush bristles
Folliculitis Decalvins
Is folliculaitos decalvins scarring Alopecia
Yes inflammation of hair follicles leads to permanent hair loss
Folloculitis and crusts around Hair
Grey skin due to hydroquinone
Ochronosis
What may bleach clothing
EpiDuo forte
PanOxyl soap
Warning to pts on EpiDuo forte or
PanOxyl soap
May bleach clothing
TINEA versicolor causes
Looks like
Aka
Aka pityriasis versicolor
Caused by yeast called pitirosporum (basically body dandruff)
Pink or hypopigmented scaly patches/plaques on upper back and chest, armpits
Normal skin yeast grows out of control so not contagious
Causes: oily skin, hot climate, sweating, low immunity
Is ringworm (tinea) contagious
Yes, dermatophyte fungus, get from people, pets, objects, floors, soil. Common where you sweat
T versicolor is not bc natural skin flora out of control
Ramsey hunt happens in what disease
In shingles
Sx: dead, vertigo, face drip, taste changes
ER: send to ENT?
Herpes rash often appears where
Low back at t bone
Most common areas for LP
Flexor writs (inner wrists), dorsal hands
Shins (rare risk of SCC), medial things, ankles
Axialla
Trunk low back
Anus, Glans penis, vulva (dispareunia) ddx:lichen sclerosis
Maybe face, palms, soles
What s aspartame broken down into and what disease important to ask in?
Breaks down into formaldehyde
Ask pts with allergic contact dermif taking Montelukast(has aspartame) or if drink diet soda see