Eczema & Dermatitis Flashcards
what is contact dermatitis?
contact dermatitis is common inflammation of the skin there are two types of contact dermatitis Allergic & Irritation
allergic dermatitis is ?
a form of type 4 hypersensitivity (delayed or T cell mediated hypersensitivity) 2000 allergens have been found to cause allergic dermatitis
Irritation dermatitis is ?
- caused by chemicals irritating skin or mechanical means such as rubbing
- there are 4 types of irritant dermatitis
there are __ types of irritant dermatitis?
4
what are the 4 types of irritant dermatitis?
- Subjective:( no mnfts some burning or stinging)
- Acute: (single exposure, dryness, erythema or edema)
- Chronic: (continuous exposure can last years, scales, fissures, vesicles)
- chemical burn: (deep necrosis)
what is the treatment of dermatitis?
- removing source
- washing area
- applying antipuritic cream
- bandaging area
- Topical corticosteroids
- extreme cases can be tx with wet dressings, oral antihistamines & systemic corticosteriods
Atopic Eczema
-itchy inflammatory skin with erythme, edema, vesicles & weeping leading to skin thickening. the link to type 1 hypersensitivity is hard to link & eczema is now believed to be a skin disease that predisposes people to allergies
treatment of Atopic Eczema
- focused on targeting dryness, pruitis, infection & inflammation by optimal skin care, skin barrier cream, avoiding irritants & foods that cause symptoms. Decrease contact with water.
- topical corticosteriods treat flare ups
- Topical immune modulators having positive results & are side effect free, better option than topical corticosteriod
- wrap therapy & intake of probiotics found to have a treatment effect
Nummular Eczema
is coin shaped rashes& predominately affects the arms & legs. Secondary infections are common.
- this type of eczema is chronic with weeks to years between outbreaks more frequently occurring in winter months.
- Cause is unknown history of allergy related disorders & presence of staph colonization at the lesion site
treatment of Nummular Eczema
includes decreasing exposure to water & stress, humidity should be increased. Topical emollients, corticosteriods, coal tar preparations & UV light therapy will be used