Doctor insights on:
How Long Will A Food Allergic Reaction Last
Allergic reactions: Food allergic reactions typically begin within 30 munutes of an ingestion and typically peak at about 30 minutes after they begin. The reaction may be short lived, lasting only a few hours (typical) or long-last; possibly for days (rare). ...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
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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
Food allergy timing: You can react in minutes, or it can take many hours. The faster reactions tend to be the most severe and potentially dangerous, even life-threatening, but occasionally, even late reactions can be very dangerous, as in reactions to alpha-gal (http://allergytomeat.Wordpress.Com/frequently-asked-questions/). Atopic dermatitis reactions to foods may not start for a couple of days; last weeks. ...Read more
Less than one week: Typically, hives due to a medication will last for only a few days; two weeks tops. Medications that stay in the body for a few days could cause longer reactions. Adverse reactions to medications should always been discussed with and shown to the prescribing physician, so that the true cause is identified, and your chart is marked so you aren't given that medication again in the future. ...Read moreSee 1 more doctor answer
Depends on severity: Minor allegic reactions, with local swelling and itching, usually resolve within 30 to 60 minutes. When someone has a more severe reaction, in which swelling or hives occur, sometimes the reactions take several days to resolve. As always, if you are ever having a reaction in which breathing is compromised or there is swelling in the throat, call 911 immediately. ...Read more
Depends: The most important issue that determines how long it lasts is whether or not you have stopped contact with the allergen. Once you stop touching it, things should look better every day. But i would say that it should be resolved within a week to 10 days. (think of poison ivy...A common topical allergic reaction.). ...Read moreSee 1 more doctor answer
Depends: If it is a hive, it should subside in ...Read more
What kind?: It depends on what kind of reaction you are talking about. Many adverse reactions to foods are not actually due to allergy and timing can be variable. The worst kind of reaction called anaphylaxis such as to peanut usually occurs right away ie minutes to hours but delays beyond that are very rare. Gluten sensitivity reactions are not immediate. ...Read more
How long does it take for facial skin to recover from an allergic reaction after a daily 3 month exposure to the allergen after first reaction?
Immediate Symptoms: Food allergies are typically an immediate reaction minutes to a half hour (max 2 hours) after ingestion of concerning food with symptoms ranging anywhere from hives, wheezing, itching, shortness of breath, wheezing, vomiting, throat tightness, or syncope (fainting). If there is any concern see an Allergist for further workup and evaluation with skin prick or serum testing. ...Read more
How long: Minutes to hours. Depends how bad it is and how allergic you are. ...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
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