Allergic Contact Dermatitis

Question 1

What is it?

Answer 1

Eczema caused by direct irritation or allergic reaction

Question 2

What type of allergic reaction is involved?

Answer 2

Type IV delayed hypersensitivity reaction

Question 3

What causes it?

Answer 3

Repeated exposure to an allergen but only in those who are susceptible to develop an allergic response

Question 4

What sort of thing causes it? (5)

Answer 4

Nickel, chromate, latex, perfume, plants

Question 5

What is irritant dermatitis?

Answer 5

Can occur in anyone when the skin has been irritated due to repeated exposure to irritants such as bleach, soaps, detergents etc

Question 6

When should you have a suspicion that this is the cause?

Answer 6

If eczema is in an unusual area or if there is no personal/family history of atopic disease

Question 7

Is it common?

Answer 7

Yes it occurs in up to 4% of the population

Question 8

What are the symptoms? (7)

Answer 8

Erythematous, itching, pain, dryness, scaling, usually in an unusual position/shape, on the hands

Question 9

What is the treatment? (6)

Answer 9

Avoidance of allergen/irritant, emollient use, soap substitutes, mild topical steroid for flare up, protective clothing, occupation change