Allergic contact dermatitis (thesaurus synonyms: allergy due to skin contact with food; allergy due to cosmetics; allergy due to organic solvent; allergy due to plaster; allergy with dermatosis; allergic dermatitis; allergic dermatitis due to external irritant a.n.k. ; allergic dermatitis due to chemical products; allergic dermatitis due to hair dye; allergic dermatitis due to turpentine; allergic skin reaction; allergic contact dermatitis; allergic contact dermatitis due to ragweed; allergic contact dermatitis due to drugs; allergic contact dermatitis due to bichromate; allergic contact dermatitis due to nettle; allergic contact dermatitis due to chemical products; allergic contact dermatitis due to chromium; allergic contact dermatitis due to dye; allergic contact dermatitis due to fish; allergic contact dermatitis due to meat; allergic contact dermatitis due to vegetable; allergic contact dermatitis due to poison ivy; allergic contact dermatitis due to poison oak; allergic contact dermatitis due to poison sumac; allergic contact dermatitis due to grasses; allergic contact dermatitis due to rubber; allergic contact dermatitis due to skin contact with food; allergic contact dermatitis due to adhesive plasters; allergic contact dermatitis due to insecticides; allergic contact dermatitis due to ragwort; allergic contact dermatitis due to catharides plasters; allergic contact dermatitis due to glue; allergic contact dermatitis due to cologne; allergic contact dermatitis due to preservatives; allergic contact dermatitis due to cosmetics; allergic contact dermatitis due to plastic; allergic contact dermatitis due to flour; allergic contact dermatitis due to metals; allergic contact dermatitis due to milk; allergic contact dermatitis due to nickel; allergic contact dermatitis due to nylon; allergic contact dermatitis due to fruit; allergic contact dermatitis due to fur; allergic contact dermatitis due to plastic; allergic contact dermatitis due to primrose; allergic contact dermatitis due to primrose; allergic contact dermatitis due to cement; allergic contact dermatitis due to band-aid; allergic contact sensitization; allergic baker’s eczema; allergic eczema; allergic erythema; allergic exanthema; allergic contact dermatitis; allergic contact eczema; allergic contact exanthema due to drugs; allergoderma; chemical allergy; chemical allergies; chromium allergy; chromium allergies; dermatitis due to sensitization a. n.k. ; dermatitis pratensis; dermatitis venenata; detergent allergy; eczema with allergy; inflammatory allergic dermatitis; fat allergy; fat allergies; rubber allergy; rubber allergies; skin allergy; skin allergy by contact; skin allergies; patch eczema; insecticide allergy; insecticide allergies; preservative allergy; preservative allergies; Contact allergy; Contact allergies; Plastic allergy; Plastic allergies; Nickel allergy; Nickel allergies; Plant allergy; Plant allergies; Plaster allergy; Plaster allergies; Rhus dermatitis; Soap allergy; Soap allergies; Detergent allergy; Detergent allergies; Meadow grass dermatitis; Cement allergy; Cement allergies; ICD-10-GM L23. -: allergic contact dermatitis) refers to a skin change triggered by skin contact with certain substances. The most common is nickel allergy. Allergic contact dermatitis is one of the most common occupational diseases worldwide. From allergic contact dermatitis one can distinguish irritant (non-allergic) contact dermatitis (synonym: toxic contact dermatitis). The latter often precedes allergic contact dermatitis. The combined diagnosis of allergic and irritant contact dermatitis is very rare. According to the time course, an acute, subacute and chronic form of allergic contact dermatitis can be distinguished. Sex ratio: males to females is 1: 10 (nickel allergy). The lifetime prevalence (disease frequency, related to the whole lifetime) for some form of contact eczema is between 15 and 20 % and the annual prevalence is about 7 % (in Germany). In Europe, approximately 27% of people have contact allergy with a significantly higher prevalence in women than in men.15.1% of Europeans surveyed reported having experienced contact dermatitis at some time in their lives.For children and adolescents (0 to 17 years of age), the lifetime prevalence is reported to be 5.6%.Older people are more likely to suffer from contact dermatitis due to a change in epidermal barrier function and immunoreactivity.For hand eczema, the annual prevalence is about 10%.Nickel triggers an allergic reaction in 10% of women and 1% of men. The incidence (frequency of new cases) of allergic contact dermatitis is estimated at 3 per 1,000 population per year. Course and prognosis: Acute contact dermatitis occurs within hours and also resolves rapidly after a rapid course. If the triggering noxious agent continues to act, the eczema fails to heal. It is also possible that the eczema persists independently of the noxious agent.Chronic contact eczema heals only with a delay. Certain occupational groups, e.g. hairdressers (due to shampoos, hair colorants, dyes, etc.) and bakers (e.g. due to flour), who are particularly affected by contact allergy, develop chronic allergic contact dermatitis over time due to repeated contacts, so that the condition usually persists throughout life. The intolerable contact substances should therefore be avoided (exposure prophylaxis).
