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Allergic contact dermatitis is common, affecting up to 20% of all people. [5] People sensitive to one allergen are at an increased risk of being sensitive to others. [5] Family members of those with allergic contact dermatitis are at higher risk of developing it themselves. [5] Women are at higher risk of developing allergic contact dermatitis ...
The rash appears immediately in irritant contact dermatitis; in allergic contact dermatitis, the rash sometimes does not appear until 24–72 hours after exposure to the allergen. Blisters or wheals: Blisters, wheals (welts), and urticaria (hives) often form in a pattern where skin was directly exposed to the allergen or irritant.
Allergic contact dermatitis occurs upon exposure to an allergen, causing a hypersensitivity reaction in the skin. [ 1 ] Prevention of atopic dermatitis is typically with essential fatty acids , [ 4 ] and may be treated with moisturizers and steroid creams. [ 5 ]
Photodermatitis, sometimes referred to as sun poisoning or photoallergy, is a form of allergic contact dermatitis in which the allergen must be activated by light to sensitize the allergic response, and to cause a rash or other systemic effects on subsequent exposure.
P-Chloro-Meta-Xylenol-induced contact dermatitis; Paraben-induced contact dermatitis; Paraphenylenediamine dermatitis; Permanent wave preparation-induced contact dermatitis; Phenothiazine drug-induced contact dermatitis; Photoallergic contact dermatitis; Photoirritant contact dermatitis; Plant derivative-induced contact dermatitis
Substances that come into contact with the skin, such as latex, are also common causes of allergic reactions, known as contact dermatitis or eczema. [28] Skin allergies frequently cause rashes, or swelling and inflammation within the skin, in what is known as a "weal and flare" reaction characteristic of hives and angioedema. [29]
Urushiol-induced contact dermatitis (also called Toxicodendron dermatitis or Rhus dermatitis) is a type of allergic contact dermatitis caused by the oil urushiol found in various plants, most notably sumac family species of the genus Toxicodendron: poison ivy, poison oak, poison sumac, and the Chinese lacquer tree. [1]
Eyelid dermatitis is commonly related to atopic dermatitis or allergic contact dermatitis. [1] Volatile substances, tosylamide, epoxy hardeners, insect sprays , and lemon peel oil may be implicated, with many cases of eyelid contact dermatitis being caused by substances transferred by the hands to the eyelids .