Contact Dermatitis
A Contact Dermatitis is an dermatitis that occurs when the skin reacts to a substance it has come into contact with.
- Context:
- It can (typically) presents as a red, itchy rash,
- ...
- Example(s):
- Counter-Example(s):
- See: Patch Test, Inflammation, Rash, Blister, Irritation, Epidermis, Immune Response, Phototoxicity.
References
2024
- (Wikipedia, 2024) ⇒ https://en.wikipedia.org/wiki/contact_dermatitis Retrieved:2024-1-5.
- Contact dermatitis is a type of acute or chronic inflammation of the skin caused by exposure to chemical or physical agents.[1] Symptoms of contact dermatitis can include itchy or dry skin, a red rash, bumps, blisters, or swelling. These rashes are not contagious or life-threatening, but can be very uncomfortable.
Contact dermatitis results from either exposure to allergens (allergic contact dermatitis), or irritants (irritant contact dermatitis). Allergic contact dermatitis involves a delayed type of hypersensitivity and previous exposure to an allergen to produce a reaction. Irritant contact dermatitis is the most common type and represents 80% of all cases. It is caused by prolonged exposure to irritants, leading to direct injury of the epidermal cells of the skin, which activates an immune response, resulting in an inflammatory cutaneous reaction.[1] Phototoxic dermatitis occurs when the allergen or irritant is activated by sunlight. Diagnosis of allergic contact dermatitis can often be supported by patch testing.
- Contact dermatitis is a type of acute or chronic inflammation of the skin caused by exposure to chemical or physical agents.[1] Symptoms of contact dermatitis can include itchy or dry skin, a red rash, bumps, blisters, or swelling. These rashes are not contagious or life-threatening, but can be very uncomfortable.