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How Long Does Shellfish Allergic Reaction Last
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Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and ...Read more
A few days: Rashes from something you ingest typically last for just a few days or less. The bigger question is what really caused the rash. People break out in rashes from time to time, and it's just human nature to blame the rash on something we ate in the last few hours. If the rash is continuing for more than a week, it probably has nothing to do with the echinacea; you should see your pcp to check it out. ...Read more
Depends: For medication reactions, if the drug is stopped, symptoms improve within 1-2 days. Food allergic reactions will subside within hours to a few days after avoiding the culprit food. For eczema triggered by food allergies, it may take up to a week. Poison ivy reactions may take several weeks to resolve depending on the severity. Treatment can shorten the duration of an allergic reaction. ...Read more
No average allergy: Everyone's allergic reaction varies. There can be mild symptoms or severe symptoms. You can have continual exposure to the allergen (pollen for example) or acute exposure (like eating shellfish). The cause of the allergy, the severity of symptoms, and other factors all play into how long an allergic reaction occurs. ...Read more
One day to years: If the dust mite exposure is avoided, symptoms may resolve in a few hours without treatment. If there has been significant, prolonged exposure, it may take weeks or months to resolve without treatment. If the mold exposure cannot be avoided, the symptoms will last indefinitely. ...Read more
It depends...: On the amount and duration of exposure. If you're allergic to dust mites and you fluff up a pillow on the way to the washing machine, probably 30 minutes. If you sleep on a pillow without an allergy cover, the all-night-long exposure might last a couple of hours, or if you're highly allergic to dust mites, it might last all day. ...Read moreSee 1 more doctor answer
Depends: If it is a hive, it should subside in ...Read more
Long, long time: Shrimp allergies tend to persist compared to other food allergies. Even when cooked, the major shrimp allergen is resistant to heat. Shrimp (and other shellfish) are more likely to cause severe allergic reactions like anaphylaxis. The major shrimp allergen called tropomyosin (in the meat/muscle) can cross react with house dust mite. The reaction has nothing to do with iodine. ...Read more
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