Contact Dermatitis Flashcards
1
Q
What are the two main types of contact dermatitis?
A
Irritant contact dermatitis
Allergic contact dermatitis
2
Q
What is irritant contact dermatitis?
A
Common - non-allergic reaction due to weak acids or alkalis (e.g. detergents) Often seen on the hands. Erythema is typical, crusting and vesicles are rare.
3
Q
What is allergic contact dermatitis?
A
Type 4 hypersensitivity reaction. Uncommon - often seen on the head following hair dyes. Presents as an acute weeping eczema which predominantly affects the margins of the hairline rather than scalp iteself.
4
Q
What is the treatment of contact dermatitis?
A
Topical treatment with potent steroid
