Search
for

    Did you mean Allergic Reaction?
    GlossaryAllergic Reactions

    immune system overreacts to harmless substances, causing symptoms

    An allergic reaction, also known as a hypersensitivity reaction, occurs when the immune system mistakenly identifies a harmless substance (allergen) as a threat and overreacts to it. This can lead to symptoms ranging from mild, such as itching and sneezing, to severe, such as anaphylaxis, which can be life-threatening. Common allergens include pollen, pet dander, certain foods, and insect stings.

    Related Terms

    Learn

    2 / 2 results

      learn Microneedling

      technique to create small wounds in skin to activate collagen production and hair growth

    Research

    5 / 1000+ results

    Community Join

    5 / 162 results