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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 ]
Urushiol / ʊ ˈ r uː ʃ i. ɒ l / is an oily mixture of organic compounds with allergenic properties found in plants of the family Anacardiaceae, especially Toxicodendron spp. (e.g., poison oak, Chinese lacquer tree, poison ivy, poison sumac), Comocladia spp. (maidenplums), Metopium spp.
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]
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
Low humidity from air conditioning was found to be the most common cause of physical irritant contact dermatitis. [3] To the lay person a definition of low humidity being a physical irritant can be confusing because low humidity is a deficit (or absence) of an elemental substance, whereas all other irritants implicated in contact dermatitis are in concentrations of relative abundance.
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 .