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How Long Does An Allergic Reaction To Antibiotics Last
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
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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
Antibiotic allergy: Antibiotic allergies can clear up in a day or last up to six months. Fortunately, most resolve relatively quickly, over a few days. We do not yet know why some persist for a long time and require strong medications like oral steroids (e.g. Prednisone) in order to settle down. ...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 the reaction, which can range from some rash to full anaphylactic shock to other complications, first step is to stop the medicine, at times it might take weeks for the rash to go away with certain antibiotics, just keep away from direct sunlight as much as you can while you have the rash, follow up with your pcp/allergist, goodluck ...Read more
Can vary: Allergic reactions from taking antibiotics can be an immediate event or can take days to develop. When they take a longer period of time, we call them "delayed hypersensitivity reactions". If there is a concern about an allergy to a medication, it is best to speak with the prescribing physician about what to do next. All the best! ...Read more
Quick: True allergic reactions typically happen after the first dose. Other reactions can occur later in the course. ...Read more
Usually fast: Most common allergic reactions to pollen, insect stings, foods, etc., are immediate hypersensitivity reactions, meaning they occur within seconds to minutes. But you can also have a late phase, a second-wave of reaction that occurs hours later. Contact allergies (poison ivy, nickel allergy, e.g.) and some medication allergies are delayed, and may take hours, days, or weeks. ...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: 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
Variable: Hives or urticaria may wax and wane then resolve within a day or 2 after ingestion or contact with a food allergen. However, poison ivy or nickel allergic contact dermatitis may take 4-6 weeks to eventually resolve. The time to resolution is also impacted by what medications are taken such as oral corticosteroids such as prednisone, which can decrease the time significantly. ...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
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
Depends: If it is a hive, it should subside in ...Read more
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