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  2. Allergic rhinitis - Wikipedia

    en.wikipedia.org/wiki/Allergic_rhinitis

    Allergic rhinitis, of which the seasonal type is called hay fever, is a type of inflammation in the nose that occurs when the immune system overreacts to allergens in the air. [6] It is classified as a type I hypersensitivity reaction . [ 8 ]

  3. Farmer's lung - Wikipedia

    en.wikipedia.org/wiki/Farmer's_lung

    Farmer's lung occurs because repeated exposure to antigens, found in the mold spores of hay, crops, and animal feed, triggers an allergic reaction within the farmer's immune system. [5] The defense mechanisms of the body present as cold and flu-like symptoms that occur in individuals who experience either acute or chronic reactions.

  4. Low back pain - Wikipedia

    en.wikipedia.org/wiki/Low_back_pain

    While most low back pain is caused by muscle and joint problems, this cause must be separated from neurological problems, spinal tumors, fracture of the spine, and infections, among others. [3] [1] The ICD 10 code for low back pain is M54.5.

  5. Arthralgia - Wikipedia

    en.wikipedia.org/wiki/Arthralgia

    [1] [2] Specifically, arthralgia is a symptom of injury, infection, illness (in particular arthritis), or an allergic reaction to medication. [ 3 ] According to MeSH , the term arthralgia should only be used when the condition is non-inflammatory, and the term arthritis should be used when the condition is inflammatory .

  6. Is it COVID, RSV or seasonal allergies? Here’s how to tell ...

    www.aol.com/covid-rsv-seasonal-allergies-tell...

    Several common symptoms of seasonal allergies and COVID-19 are similar, including: Cough. Stuffy or runny nose. Sneezing. Headache. ... Fever or chills. Nausea or vomiting. Diarrhea. Fatigue.

  7. Rheumatism - Wikipedia

    en.wikipedia.org/wiki/Rheumatism

    Rheumatism [2] / ˈ r uː m ə t ɪ z əm / or rheumatic disorders are conditions causing chronic, often intermittent pain affecting the joints or connective tissue. [3] Rheumatism does not designate any specific disorder, but covers at least 200 different conditions, including arthritis and "non-articular rheumatism", also known as "regional pain syndrome" or "soft tissue rheumatism".

  8. Type III hypersensitivity - Wikipedia

    en.wikipedia.org/wiki/Type_III_hypersensitivity

    Type III hypersensitivity, in the Gell and Coombs classification of allergic reactions, occurs when there is accumulation of immune complexes (antigen-antibody complexes) that have not been adequately cleared by innate immune cells, giving rise to an inflammatory response and attraction of leukocytes.

  9. Reactive arthritis - Wikipedia

    en.wikipedia.org/wiki/Reactive_arthritis

    1. Episode of arthritis of more than 1 month with urethritis and/or cervicitis: 84.3%: 98.2% 2. Episode of arthritis of more than 1 month and either urethritis or cervicitis, or bilateral conjunctivitis: 85.5%: 96.4% 3. Episode of arthritis, conjunctivitis, and urethritis: 50.6%: 98.8% 4. Episode of arthritis of more than 1 month ...