Common Skin Conditions Flashcards
Aloe
Natural product made from aloe vera plant
Used for sunburn, psoriasis
Provides a soothing effect
Tea Tree Oil
Used for acne
Lysine
Used for cold sore (Herpes simplex labialis) prevention & treatment
Topical vitamin D
Used for diaper rash & psoriasis
Drugs that cause brown discoloration/secretions
Entacapone
Levodopa
Methyldopa
Drugs that cause Brown/Black/Green discoloration/secretions
Iron (black stool)
Drug that causes Brown/Yellow discoloration/secretions
Nitrofurantoin
Drug that causes orange/yellow discoloration/secretions
Sulfasalazine
Drug that causes yellow/green discoloration/secretions
Propofol
Drugs that cause Red/Orange discoloration/secretions
Phenazopyridine
Rifampin (Rifadine)
Drug that causes red discoloration/secretions
Anthracyclines
Drug that causes blue discoloration/secretions
Methylene blue
Mitoxantrone
Drug that causes Blue/Gray discoloration/secretions
Amiodarone
What are the primary determinants of acne?
Androgens
Bacteria (Cutibacterium acnes, formerly known as propionibacterium acnes)
Fatty acids (Sebum present in oil (sebaceous) glands
Acne: Treatment (general)
OTC benzoyl peroxide & salicylic acid
Retinoids
Topical/Systemic steroids
Antibiotics
Systemic isotretinoin
Retinoids MoA
Vit A derivatives
Reduce adherence of keratinocytes in the oil gland
Retinoids: contraindication
Teratogenic
Pregnancy/Lactation
Retinoids: administration
Daily at night with pea-sized amount
Can decrease to every other night if irritation occurs
Moisturizer, followed by sunscreen should be applied every morning
How does it take for retinoids to work?
4-12 weeks
Acne may worsen initially
Oral retinoid (Isotretinoin): use
Severe, recalcitrant nodular acne
Isotretinoin: required testing
Pregnancy
Cholesterol
Clascoterone
Topical androgen receptor inhibitor
For 12+ years old
Mild acne: 1st line treatment
Topicals: BPO or retinoid OR
Topicals: combination
Topical combination therapy includes
BPO + topical antibiotic, BPO + retinoid or BPO + retinoid + topical antibiotic
Moderate acne: first line treatment
Topicals: combination OR
PO antibiotic + BPO + topical retinoid (+/- topical abx)
Severe acne: first-line treatment
Topicals: combination + PO abx OR
PO isotretinoin
Topical Retinoids: examples
Tertinoin (Atralin, Renova, Retin-A, Retin-A micro, Altreno)
Adapalene (Differin)
Advantage of Retin-A micro
Provides slower release, allowing for less irritation
Topical retinoids: counseling points
Limit sun exposure
Apply daily at HS, 20 minutes after washing face
Irritation? dec. strength or switch to every other night
Smooth a pea-sized amount all over the face, not JUST on the acne
Wash with only mild soap BID
Takes 4-12 wks to work, may worsen initially
What patients do you want to avoid dapsone gel in?
G6PD deficiency
Clascoterone: warning
HPA axis suppression
Isotretinoin & pregnancy
2 negative pregnancy tests prior
Do not get pregnant 1 month before or 1 month after
Do not breastfeed until atleast 1 month after drug stopped
Pregnancy test repeated monthly, 2 forms of birth control required
Isotertinoin: ADRs
Dry skin, chapped lips, dry eyes/eye irritation
Cold sores: cause
HSV-1
Spreads from active lesions, kissing, sharing drinks
Cold sores: ideal time to start treatment
Prodromal period It precedes sore eruption
Drugs for cold sores
Docosanol (abreva) - OTC: 5x/day at first sign of outbreak
Zovirax (Rx): 5x/day x4 days (Can use on genitals)
Drugs for dandruff
Ketoconazole 1% (Nizoral-AD) - OTC
Selenium sulfide (Selsun) - OTC
Pyrithione zinc (Head & Shoulders) - OTC
Coal tar shampoo (T/Gel) - OTC
Ketoconazole 2% (Nizoral) - Rx
Medical conditions that cause alopecia
Hypothyroidism
Zinc & Vit D deficiency
Drugs that cause alopecia
Chemotherapeutics
Valproate
Tacrolimus
Heparin
Drugs for alopecia
Propecia 1mg daily (takes 3 months to see results)
Baricitinib - causes serious infections, malignancy, and thrombosis
Rogaine
Bimatoprost (Latisse) - for hypotricosis
Eczema: presentation
Skin rashes which become crusty & scaly
Rash is itchy, red, dry & sore
Eczema: non-pharm approaches
Hydration & moisturizers