Dermatology - acne etc Flashcards
What is the epidemiology of acne vulgaris?
- Second decade almost universal
* boys usually more persistent lesions
What are the variants of Acne?
- Vulgaris
- Drugs induced
- Chemicals - cutting oils, chlorinated hydrocarbons
- Infantile - can be severe and scarring
- Acne fulminans- sudden and severe, cysts, febrile, scarring
- Acne Excoriee - itchy
What drugs can cause Acne?
steroids, Li, phenytoin, iodines, bromides, isoniazid
What is infantile acne due to?
early androgenic hormones
What are differentials for acne?
- rosacea
- perioral dermatitis
- tinea faciei
What are the topical treatment options for acne vulgaris? (common ones)
benzyl peroxide
antibiotics
- erythromycin
- clidamycin
retinoids
- adapalene
- tretinoin
- isotretinoin
What are the oral treatment options for acne?
OCP - Diane
tetracyclines (doxycycline) or macrolides (erythrmoycin)
isotretioin
What is roacea?
A chronic condition of skin inflammation characterised by redness, flushing, and other cutaneous findings
(bulbuous ruddy nose)
What part of the body does roacea commonly occur?
Convex surfaces - cheeks nose, forehead
Generally the face, but can spread to the upper body or elsewhere
Who gets peri-oral dermatitis?
Mainly women in their 20s - 50s
What are common skin finding in peri-oral dermatitis?
Erythema, papules, pustules, fine scaling
What is the cause of peri-oral dermatits?
potent corticosteroids to the face
What is the management of peri-oral dermatitis?
avoid steroids
skin cleanser
antibiotics (top or PO)
