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Anaphylaxis Developing After Exposure
Within minutes: Anaphylaxis is a severe, potentially life-threatening allergic reaction that involves multiple parts of the body (lungs, heart, skin, & gut). If you are allergic to a food, medicine, or stinging insect, exposure may cause anaphylaxis quickly. This is why sensitive patients should carry self-injectable Epinephrine with them at all times and not delay using it at the first sign of a reaction. ...Read moreSee 2 more doctor answers
Anaphylaxis is a severe, whole-body allergic reaction to a chemical that has become an allergen. After being exposed to a substance such as bee sting venom, the person's immune system becomes sensitized to it. When the person is exposed to that allergen again, an allergic reaction may occur. Anaphylaxis happens quickly after the exposure, is severe, and ...Read more
If you have an intense fear of anaphylaxis and food allergy (especially nuts). How can you overcome this? I do not have any allergies. Exposure? Or?
Yep, Exposure: Consider facing this fear little by little. A phobia =intense, irrational fear. An obsession =intrusive thought. See anxiety expert 4 careful diagnosis. Cognitive-behavioral therapy -particularly the behavioral component involving exposure to the fear(s) (usually gradual)- is considered the most effective treatment. A clinical psychologist who specializes in phobias, anxiety, ocd can help. ...Read moreSee 1 more doctor answer
When you develop an allergy after multiple exposure to a medication what are the chances it will be anaphylactic rather than a rash?
Can you have anaphylactic rxn following first exposure to an allergen (eg medication) or is it usually after subsequent exposures?
Anaphylaxis..: on first exposure doesn't really happen, most of the time, as you need a sensitizing dose, i.e. Previous exposure, even in tiny amount, usually patients don't recall this previous exposure. Anaphylactoid reactions, can happen with certain drugs as morphine, x-ray dyes, and others, resembling exactly anaphylaxis without being an allergic reaction, and anaphylaxis can happen without a cause, rare. ...Read more
How long after exposure/ingestion of a substance (eg nuts/seafood ect.) does anaphylactic shock occur, if someone is allergic? Minutes? Hours?
Allergy types: There are different types of allergic reactions. By definition, anaphylaxis occurs very rapidly after exposure to an allergen - usually within minutes and usually severe and possibly life-threatening. Then there are other types of hypersensitivity reactions that can occur over hours, days or even weeks from exposure time! ...Read more
If you were going to have an anaphylactic reaction to something, how long after exposure will it occur? What's the longest it can take?
Its: Usually fairly quick seconds to minutes.Get a more detailed answer ›
Not related: Poison ivy is a different type of allergy. It is a rash that starts 12-24 hours after it touches your skin and worsens up to 48 hours later. It does not usually cause anaphylaxis . Those who are sensitive have activated their immune cells to kill any of your skin cells that have been contaminated by touching the oils of the plant. ...Read moreSee 1 more doctor answer
Can anaphylaxis occur after 4 doses of amoxicillin rather than just 1 dose? Can I develop a severe allergic reaction after 4 doses? Is that common?
Not common: But can happen, usually if it is the first time on the drug, takes time to be sensitized, drug allergy is a complex and tricky subject. Trust you stopped the amoxicillin and all other suspected offending drugs you are on, called your docto/ER for treatment, and for an alternative antibiotic if you still need one. Ask your your doctor for an epinephrine Rx to keep handy 4 accidental exposure later ...Read more
Anaphylaxis: The relative timeframe for anaphylaxis to occur after exposure to a particular allergen or antigen can vary from seconds to hours. It could take from 30 minutes to an hour before the problem develops. As a general rule, the sooner the symptoms of anaphylaxis appear after exposure then the more severe the reaction is likely to be. Those symptoms relating to the surface of the skin may be the first. ...Read moreSee 1 more doctor answer
Anaphylaxis: Epinephrine is the only proven effective treatment for anaphylaxis. There is no data to support any benefit from h1/h2 antihistamines or steroids. We give them to decrease the reaction but only Epinephrine is recommended in anaphylaxis. Give Epinephrine and call 911. Epi only has a half-life of 30 minutes. ...Read moreSee 1 more doctor answer
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