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Doctor insights on: Alternative Treatments For Penicillin Allergy

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What treatments are appropriate for tonsillitis when you have a penicillin allergy?

What treatments are appropriate for tonsillitis when you have a penicillin allergy?

Zithromax: Azithromycin (zithromax) is a good option for streptococcal tonsillitis. There is some cross-reactivity between penicillins and cephalosporins (such as keflex), and these would not be my first choice. Many infections are caused by viruses, and in this situation antibiotics are not effective. ...Read more

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Penicillin Allergy (Definition)

Penicillin allergy can be classified as an ige mediated immediate immune reaction in which a patient develops an allergic reaction to the break-down products of penicillin leading to allergy cell activation and mast cell release within 30 minutes to a few hours or it can be a delayed t cell mediated immune reaction in which patients develop a skin rash days after being ...Read more


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I may need cephalosporin therapy with a suspected penicillin allergy. How does it work? Do I take a 3rd generation by mouth and sit in an ER waiting room with a buddy and an epipen (epinephrine)?

I may need cephalosporin therapy with a suspected penicillin allergy.  How does it work?  Do I take a 3rd generation by mouth and sit in an ER waiting room with a buddy and an epipen (epinephrine)?

Penicillin allergy: Among all patients reporting penicillin allergy, 85 to 90% will tolerate a penicillin, either because they were never allergic or because they had an earlier allergy that subsequently resolved. Among penicillin skin test-positive patients, approximately 2% will react to a cephalosporin. ...Read more

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Doctors, can my penicillin allergy prevent me from joining the u.s. navy?

Doctors, can my penicillin allergy prevent me from joining the u.s. navy?

I just reviewed: enlisted / commission physical standards and did not note medication allergies as a disqualifying condition. Good luck. ...Read more

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Can you eat bleu cheese if you have a penicillin allergy?

Can you eat bleu cheese if you have a penicillin allergy?

Not the same: The color of bleu cheese is not produced by penicillium, although imagine that if it sat around long enuf and became contaminated this could grow on it. ...Read more

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Will desensitizing me to penicillin reduce my penicillin allergy?

Will desensitizing me to penicillin reduce my penicillin allergy?

Yes: The way desensitization works is that you are given very small doses of penicillin initially. The amount is gradually increased to get your body not to react to it. There are very few infections that require treatment with pcn so desensitization is rarely done. ...Read more

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How can you test for penicillin allergy?

How can you test for penicillin allergy?

Skin and other tests: It depends on which antibiotic is of concern. There are skin tests available for many of them, but they should be performed by a properly trained allergist with the necessary controls. After skin testing, depending on the history, another step (cautious challenge or desensitization) may be necessary. ...Read more

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Can you take cefaclor if you have a penicillin allergy?

Can you take cefaclor if you have a penicillin allergy?

See below: Depends on your pcn allergy 2-3 % cross allergy usually ok be careful if you have a bad reaction to pcn. ...Read more

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What antibiotics do you take if you have a penicillin allergy?

What antibiotics do you take if you have a penicillin allergy?

Lots of Options: Depends on the infection. Certain infections call for different antibiotics. Penicillin drugs are usually first line for most problems, however there are alternatives that can be used. Your doctor would be the best person to talk about what options are right for you. If you are interested in determining if you still have a penicillin allergy, see an Allergist for penicillin skin testing. ...Read more

Dr. John Chiu
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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