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Length varies based on what kind of reaction you have. The common rash reaction can last a bit over a week but itching usually stops within a couple of days with the assistance of Benadryl.

Some swear that increased hydration and/or working up a sweat helps clean your system faster.

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13y ago
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15y ago

Allergies can last a lifetime or come and go

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15y ago

It depends. Are you talking about an allergic reaction? If so, it can range from immediatley to 2 hours after taking it.

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Q: How long does it take for a penicillin allergic reaction to go away?
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If you have had a allergic reaction to penicillin how long does it take to get out of the body?

if i was allergic to a medication ie: tetracycline will I always be allergic or is there a time frame arount when our bodies change (every 7 yrs)


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How long is the recovery time from penicillin allergic reaction?

i was taking antibiotic with penicillin and on day 4 had a allergic reaction ...since i have been itching and still have a rash plus my joints hurt especially my wrists and shoulders could this be connected to my allergic reaction?.. i feel so tired and its day 3 days after my reaction i normally am very fit and go running 3 times a week but cant even weak the stairs without getting tired ...


Is penicillin allergy hereditary?

Yes, a penicillin allergy can be hereditary. If one or both of your parents are allergic to penicillin, your chances of being allergic are higher. Often though, penicillin allergies are just caused by exposure over a long period of time.


Is Allergies hereditary?

Yes, a penicillin allergy can be hereditary. If one or both of your parents are allergic to penicillin, your chances of being allergic are higher. Often though, penicillin Allergies are just caused by exposure over a long period of time.


How long does it take for allergic reaction rash to appear from medication?

I had a allergic reaction to penicillin, i took 3 tablets of amoxicillin and the next day; my fingers swelled up and i had a rash. So about 12 to 24 hours, however, even if the drug that caused the allergic reaction has left your body, the rash and other symptoms can still stay.


How long does a allergic reaction take to occur?

a day up to 2 weeks


If you had a tooth pulled two weeks ago and had novacaine and your lips are still numb and tingling are you having an allergic reaction to the novacaine or does it take this long to go away?

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What are long-term effects of penicillin?

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What are the effects of penicillin given to a 7 year old child with swollen neck glands and sore throat?

As long as the child is not allergic, the effect should be a decrease in infection symptoms.If allergic, the child will often develop a fine skin rash on belly, back, and arms, or hives. A severe reaction can also affect breathing which is a medical emergency. If your child has a reaction, call your doc and stop the medication. The Doc will order a different med.


How long till you can return to work after an allergic reaction to a bee sting?

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