Scaly Dermatitis Flashcards

1
Q

What are 5 medications that can be used to treat scaly dermatitis?

A
coal tar
zinc pyrithione
selenium sulfide
ketoconazole 2% shampoo
salicylic acid (SA)
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2
Q

what is coal tar? how does it work?

A

keratolytic and antiseptic; may also have anti-pruritic effects
works by increasing time it takes for cells to turnover because skin cells aren’t forming properly and start to clump together

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3
Q

what are the side effects of coal tar?

A
acne
folliculitis
stains to skin/hair
photosensitization
irritant contact dermatitis
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4
Q

what are two downsides to using coal tar?

A

unpleasant odour/colour, can stain

known to contain some human carcinogens

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5
Q

what is zinc pyrithione?

A

cytostatic (decreases rate of epidermal skin cell replication) and keratolytic
also has bacteriostatic and fungistatic properties

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6
Q

what is a benefit of using zinc pyrithione?

A

very well tolerated (few side effects)

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7
Q

what is selenium sulfide?

A

keratolytic, slows down scale production and epidermal proliferation; some fungicidal/static properties

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8
Q

what is one downside to using selenium sulfide?

A

frequent use tends to leave a residual odour, an oily scalp, and hair loss

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9
Q

what is ketoconazole 2% shampoo?

A

cytostatic and fungistatic

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10
Q

what is SA?

A

keratolytic
causes loosening and flaking off of skin (decreases pH, which increases hydration of keratin, facilitating loosening and removal

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11
Q

what is a precaution with SA?

A

not to be used on over 20% of BSA as it may cause salicylate toxicity (tiredness, ringing in ears, GI symptoms)

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12
Q

what is psoriasis?

A

life-long chronic inflammatory disease of the skin involving high turnover rate of skin cells

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13
Q

what are some risk factors for psoriasis?

A
genetic predisposition
skin trauma
environmental (alcohol, obesity, stress, preggo)
medications (beta-blockers, NSAIDs)
infections (resp, strep, HIV)
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14
Q

what are 4 signs and symptoms of psoriasis?

A

thickened red plaque with silvery-white scales
bleed easily
symmetrical lesions
minimal itching

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15
Q

what are some assessment questions to ask the pt? (7 points)

A

1) how severe are the symptoms
2) duration of irritation
3) area of involvement
4) how often do symptoms occur
5) med history
6) has anything been tried yet
7) has it been diagnosed by a physician

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16
Q

what are some red flags for psoriasis? (6 points)

A

1) 3% of body surface area involved
5) severity and type of psoriasis (ie: mild vs severe)
6) location of lesions: hand, forearms, face

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17
Q

What are 5 different modes of therapy for psoriasis?

A
topical therapy
phototherapy
systemic therapy
biologic therapy
combination therapy
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18
Q

What are 5 non-pharms for psoriasis treatment?

A

1) don’t rub, scratch or pick skin
2) mild cleansers and warm water used for cleansing - avoid fragrances and irritating chemicals to reduce drying effects
3) moisturize skin and keep hydrated
4) avoid triggers (smoking, alcohol, stress)
5) moisturize air in home

19
Q

what are 4 topical treatment options for psoriasis?

A

1) corticosteroids (med-high potency)
2) compounds with coal tar or salicylic acid
3) tazarotene
4) calcipotriol

20
Q

what are some coal tar products used to treat psoriasis?

A

denorex regular or extra strength

Targel

21
Q

what are some SA products used to treat psoriasis?

A

dermarest medication shampoo
sebcur
psoriasis S/A therapeutic shampoo

22
Q

what are some combo products (SA and coal tar)

A

polytar AF shampoo
Sebcur/T
Tardan Shampoo
Targel SA

23
Q

what is a corticosteroid product that can be used to treat psoriaris?

A

hydrocortisone 0.5% cream

24
Q

What is dandruff?

A

Chronic, non-inflammatory scalp condition involving excessive scaling of the scalp

25
Q

what are 5 risk factors for dandruff?

A

Environmental (dry climate, weather extremes)
Increased stress
Obesity (increased sweat)
Inadequate hair washing
Possibly caused by fungus Malassezia furfur

26
Q

what are 6 signs and symptoms of dandruff?

A

1) dry, white, or silvery-gray flakes
2) scaling from accumulation of flakes
3) detached by combing hair
4) Usually symmetrical presentation
5) may be in patches (uncommon)

27
Q

What are 3 non-pharms for dandruff and seborrhea dermatitis treatment?

A

1) remove triggers and aggravating factors
2) wash hair with general, non-medicated shampoo every other day or daily
3) control stress

28
Q

what are 5 ways to remove triggers/aggravating factors in regards to dandruff and seborrhea dermatitis treatment?

A

avoid irritating soaps, gels, greasy creams, and hair products
avoid excessive hot water
avoid or decrease exposure to cold, dry air
use cool air humidifier
warm compresses to area

29
Q

What are the first and second line treatments for dandruff?

A

1st: zinc pyrithrione, selenium sulfide, ketoconazole shampoo to decrease Malassezia
2nd: keratolytic agent (SA) or antiproliferative agent (coal tar)

30
Q

What are some zinc pyrithione products for dandruff?

A

Head and shoulders

Pantene anti-dandruff

31
Q

What are some selenium sulfide products for dandruff?

A

Selsun
Selsun blue
Head and shoulders clinical strength

32
Q

what is a ketoconazole product for dandruff?

A

nizoral shampoo

33
Q

what are some SA products for dandruff?

A

Sebcur

Selsun blue deep cleansing

34
Q

What are some coal tar products for dandruff?

A

neutrogena T-gel
Denorex
Polytar
Sebcur/T

35
Q

What is seborrhea dermatitis?

A

sub-acute or chronic inflammatory condition involving accelerated turnover rate of skin cells

36
Q

What are two possible causes for seborrhea dermatitis?

A
yeast infection (Malassezia)
abnormality of the oil glands and hair follicles
37
Q

What are 6 risk factors for seborrhea dermatitis?

A

increased incidence in HIV/AIDS patients
genetics
med conditions (Parkinsons, depression, mood disorders)
environmental (low humidity and temp)
Stress
Meds (lithium, cimetidine , haloperidol, methyldopa)

38
Q

What are 5 signs and symptoms of seborrhea dermatitis?

A

1) mild greasy scaling of scalp area
2) starts as small patches and spreads
3) dull, yellowish oily scaly areas on red skin
4) itching is common
5) groin area, axillae show lesions that are bright red without scaling

39
Q

What are 5 red flags with seborrhea dermatitis?

A
40
Q

What are the 1st and 2nd line treatments for seborrhea dermatitis?

A

1st - zinc pyrithrione, selenium sulfide, ketoconazole

2nd - keratolytic, antiproliferative, hydrocortisone cream

41
Q

how do you use hydrocortisone cream to treat seborrhea dermatitis?

A

OD-BID for 1-2 weeks or until symptoms clear

apply after shampooing

42
Q

What are the instructions of use for medicated shampoos?

A

use 2-4 times per week until controlled

reduce to once per week to prevent relapse

43
Q

what is the medication pharmacists are allowed to prescribe in MB?

A

ciclopirox

broad spectrum agent that is effective against dermatophytes, yeast, and some bacteria