Top
20
Doctor insights on: How Long Does Allergic Reaction Last

Share
1

1
How long does an average allergic reaction last for?

How long does an average allergic reaction last for?

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

Dr. John Chiu
2,716 doctors shared insights

Allergies (Definition)

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


2

2
How long do allergic reactions usually last?

How long do allergic reactions usually last?

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

3

3
How long does an allergic reaction rash from echinacea last?

How long does an allergic reaction rash from echinacea 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

4

4
How long does pineapple allergy rash last?

How long does pineapple allergy rash last?

Few hours: If the rash (usually hives) doesn't resolve within a few hours of staying away from pineapples, it probably has another cause. ...Read more

5

5
How long does allergic conjunctivitis last?

How long does allergic conjunctivitis last?

Last: Allergic conjuntivitis is a chronic condition. You can have it for life. It is best treated with antihistamine eye drop medication and avoiding the allergen. ...Read more

See 1 more doctor answer
6

6
Allergic reaction to pineapple how long it lasts?

Allergic reaction to pineapple how long it lasts?

Hours: Nearly all food reactions subside in less than a day. ...Read more

8

8
How long does allergic relation to amoxicillin last?

How long does allergic relation to amoxicillin last?

Days: Depends on the type of reaction. If the reaction consists of hives or swelling, it will . Likely subside in 24 hrs. If it is a rash, then it will take days. ...Read more

9

9
How long could carpet/dust allergy reaction last?

How long could carpet/dust allergy reaction last?

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

10

10
How long does a dust mite allergic reaction last?

How long does a dust mite allergic reaction last?

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 more

See 1 more doctor answer
12

12
How long does an allergic reaction on the face last?

How long does an allergic reaction on the face last?

Depends: Depends on the type of reaction. Swelling (angioedema) usually lasts 24-72 hours when it reaches maximum. Allergies can last for very long times if not treated. If unsure, the safest bet is to see your friendly allergist for advice and treatment. ...Read more

13

13
Help please? How long does swelling from an allergic reaction last?

Help please? How long does swelling from an allergic reaction last?

Fairly quickly: Swelling after an allergic reaction usually resolves within 24 hrs of exposure. Swelling that persists for days is not likely IgE-mediated (allergic) and might be due to other causes. See an allergist if you are concerned about persistent swelling/angioedema. ...Read more

14

14
How long will my topical allergic reaction last for?

How long will my topical allergic reaction last for?

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 more

See 1 more doctor answer
15

15
How long does it take for an allergic reaction appear?

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

17

17
How long does an allergic reaction to a vaccine last?

How long does an allergic reaction to a vaccine last?

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

18

18
Target lesion allergic reaction how long does it last for ?

Target lesion allergic reaction how long does it last for ?

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

19

19
How long does an average allergic reaction last for?

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

20

20
How long does a minor allergic reaction last like a minor itchy rash?? Without any medication??

How long does a minor allergic reaction last like a minor itchy rash?? Without any medication??

Depends: On the stimulus (allergen), the route, and the exposure duration, if ingested might take some time till eliminated, at any rate if it is minor as you described it should be only hours at the most ...Read more

Dr. John Chiu
1,079 doctors shared insights

Allergic Reaction (Definition)

A sensitivity to substances called allergens that come into contact with the skin, nose, eyes, respiratory tract, or gastrointestinal tract. They can be breathed into the ...Read more