A lot of people with allergic reactions experience mild symptoms, like hives, eczema, allergic rhinitis—which is inflammation of the nose, as well as asthma.
Certain people though, when exposed to a large load of specific allergens, like bee stings, seafood, or peanuts, can have a really severe and potentially life threatening allergic reaction.
The increased vascular permeability, along with the constriction of airways can be severe enough such that the body can’t supply the vital organs—like the brain, with enough oxygen-rich blood, a condition known as anaphylactic shock.
Treatment for type one hypersensitivity can involve a variety of medications.
Antihistamines, act to block the effects of histamine, which reduces vascular permeability and bronchoconstriction.
Also there’re corticosteroids, which can be used to reduce the inflammatory response, as well as epinephrine, which is sometimes given during severe reactions via intramuscular injections through an EpiPen or intravenous injection.
Epinephrine can help constrict blood vessels and prevent anaphylactic shock.
If there’s ever a serious type one hypersensitivity reaction that requires something like steroids or Epinephrine, it’s super important to get medical attention because type 1 hypersensitivity reactions can be serious and can sometimes get slightly better before getting worse again.
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