Dermatology Flashcards
What is Eczema/Dermatitis
Itchy, Dry inflammatory Skin disease
How is Eczema Classified
Endogenous - Atopic, Seborrheic, Discoid, Pomphlyx, Varicose
Exogenous: Allergic Contact, Irritant Contact, Photosensitive
What can Cause A childhood Flare of eczema
Infections Environment: Aircon, Central Heating, Pets: Contact and Sensitisation Stress such as teething Often No cause
Features of Atopic Eczema
Most common - ! of the 3 atopies
Family Link
in infancy - Starts at face(cheeks) and the neck
Older Children - Flexural Pattern
What causes Atopic Eczema
Abnormalities in Fillagrin expression resulting in a skin barrier defect
Decreased keratin bonding and decreased moisture.
this loss of the barrier allow irritants to penetrate
Features of Seborrheic Eczema
Prominent on scalp and face - scaly dry patchy skin
commonly <3months, clears by 12.
Treatment of Seborrheic Eczema
Emollients
Antifungal Creams/Shampoos
Mild Topical Steroid - Hydrocortisone
Signs that may lead you to suspect a food allergy`
Instant reaction - Lip Swelling, facial redness/itch, anaphylactoid symptoms
Late reactions may occur - 24/48 hours later
Gi Problems
Failure to thrive
Severe eczema unresponsive to treatment
severe generalised itch even in skin is clear
2 ways of testing food allergies
Bloods - IgE reaction to certain foods
Skin Patch Testing
Other Allergies tested in the same way
Treatment for Eczema
Emollients - Fragrance free, the greasier the better
Topical Steroids: use appropriately to avoid skin tinning
Mild: hydrocortisone
Mod: Eumovate
Potent: Bontovate
V. Potent: Dermovate
UBV Light therapy
immunosuppression
Calcineurate inhibitors
Correct use of Steroids
Used OD for 1-2 weeks
Improvement: Every second day for a few days
Stubborn/Persistent: 2x a day it these areas.
Features of Impetigo
Subacute Staph A. infection
Honey coloured, Crusted papules and erosion on the face around the mouth
Rx of Impetigo
Topical Antibacterial - Fucidin
Oral Abx - flucloxacillin
Viral Warts
Often Skin Coloured
HPV –> Skin Contact
Treatment: Cryotherapy/Salycilic Acid
Chicken Pox
Varicella Zoster Virus
1 infection = Lifelong immunity (except in immunocompromised)
Red papules and vesicles
Incubation = 10 days
Contagious 1-2 days before rash and unti crusted
Self limiting - Calamine Lotion
