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  2. Allergic contact dermatitis - Wikipedia

    en.wikipedia.org/wiki/Allergic_contact_dermatitis

    Although less common than ICD, ACD is accepted to be the most prevalent form of immunotoxicity found in humans. [1] By its allergic nature, this form of contact dermatitis is a hypersensitive reaction that is atypical within the population. The mechanisms by which these reactions occur are complex, with many levels of fine control.

  3. Hypersensitivity - Wikipedia

    en.wikipedia.org/wiki/Hypersensitivity

    Hypersensitivity (also called hypersensitivity reaction or intolerance) is an abnormal physiological condition in which there is an undesirable and adverse immune response to an antigen. [ 1 ] [ 2 ] It is an abnormality in the immune system that causes immune diseases including allergies and autoimmunity .

  4. Drug rash with eosinophilia and systemic symptoms - Wikipedia

    en.wikipedia.org/wiki/Drug_rash_with_eosinophil...

    The symptoms of DRESS syndrome usually begin 2 to 6 weeks but uncommonly up to 8–16 weeks after exposure to an offending drug. Symptoms generally include fever, an often itchy rash which may be morbilliform or consist mainly of macules or plaques, facial edema (i.e. swelling, which is a hallmark of the disease), enlarged and sometimes painful lymph nodes, and other symptoms due to ...

  5. Contact dermatitis - Wikipedia

    en.wikipedia.org/wiki/Contact_dermatitis

    The patch tests were based on the concept of a type IV hypersensitivity reaction where there is exposure of allergens to skin and checking for the development of contact dermatitis in that area. This test involves the application of suspected irritant to a part of the skin and cover it with impermeable material and attached to the skin with the ...

  6. Drug allergy - Wikipedia

    en.wikipedia.org/wiki/Drug_allergy

    Symptoms of drug hypersensitivity reactions can be similar to non-allergic adverse effects.Common symptoms include: [1] Hives; Itching; Rash; Fever; Facial swelling; Shortness of breath due to the short-term constriction of lung airways or longer-term damage to lung tissue

  7. Multiple chemical sensitivity - Wikipedia

    en.wikipedia.org/wiki/Multiple_chemical_sensitivity

    The International Statistical Classification of Diseases and Related Health Problems (ICD), maintained by the World Health Organization, is a medical coding system used for medical billing and statistical purposes – not for deciding whether any person is sick, or whether any collection of symptoms constitutes a single disease. However, this ...

  8. Acute generalized exanthematous pustulosis - Wikipedia

    en.wikipedia.org/wiki/Acute_generalized...

    Like other drug-induced SCARs disorders, AGEP is a type IV hypersensitivity reaction in which a drug or its metabolite stimulates cytotoxic T cells (i.e. CD8 + T cells) or T helper cells (i.e. CD4 + T cells) to initiate autoimmune reactions that attack self tissues. SCARs are type IV, subtype IVb (DRESS syndrome), type IV, subtype IVc (SJS, SJS ...

  9. Sensory processing disorder - Wikipedia

    en.wikipedia.org/wiki/Sensory_processing_disorder

    It is not recognized as a mental disorder in medical manuals such as the ICD-10 [33] or the DSM-5. [34] There is not single test to diagnose this. Diagnosis is primarily arrived at by the use of standardized tests, standardized questionnaires, expert observational scales, and free-play observation at an occupational therapy gym. Observation of ...