Contact dermatitis is a skin condition that is caused by contact with an allergen.
The term contact dermatitis is used to describe a condition that has its origins in contact with an
allergen. The most common cause of contact dermatitis is the use of topical medications such as
steroids, antibiotics, or other ointments. It can also be caused by certain plants, metals, and other
substances. The symptoms are usually localized to the area where the contact occurred. They
may include redness, swelling and itchiness
There are three main types:
* Irritant contact dermatitis occurs when the skin comes into contact with a chemical or other
substance that irritates the skin.
* Allergic contact dermatitis is caused by an allergen such as poison ivy or nickel in jewellery.
* Photoallergic contact dermatitis is caused by sunlight and can be triggered by substances such
as fragrances, cosmetics, and some medications.