Doctor insights on:
How Long Does A Allergic Reaction Rash Last
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
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
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
Vaccine reactions: The duration of an allergic reaction to a vaccine depends on the type of allergic reaction and on the person having the reaction. Reactions like classic allergies, ie hives or "urticaria" may last a few days, whereas those that are more serum sickness-like, with joint pains, sometimes last longer, like weeks or months, and require treatment with steroids. Most reactions are short-lived. ...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
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Depends: Immedite type reactions can occur i minutes. Contact allergies can take several days to show itself. Some drugs reactions can appears as long as 2 weeks after stopping the antibiotic and can persist for up to 6 months. Some sensitivities will not show at the first exposure, will show only with subsequent exposures. ...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
Depends: If it is a hive, it should subside in ...Read more
Depends: One thing you need to consider is Lime Disease from a tick bite. Should consult a doctor promptly to confirm it so that you can get it treated. There are also other conditions with target lesions and the duration would depend on what has caused it. Rush to your doctor's office now. ...Read more
Allergy duration: The duration of allergic symptoms are very variable. The type of reaction (ige vs. Igg), persistance of exposure, degree of sensitization, and comorbidities (other illnesses) can all affect the duration of symptoms. Therefore reactions can last from minutes to months. ...Read more
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