Q: how long does it take a rash due to a penicillin allergy to clear?

< 7 - 10 days: Antibiotics like penicillin can cause different types of rashes that can vary in how long they persist. The classical true penicillin allergic rash is hives and once the penicillin is stopped usually resolves in less than 7-10 days. Occasionally this can trigger more prolonged hives. Other rashes from penicillin not due to true allergy would include small red bumps that usually lasts < 1-2 wks.

Q: is there a particular type of rash associated with penicillin allergy?

Measles-like: Most rashes with penicillin are "morbilliform" or measles-like. More serious penicillin allergy may result in hives (itchy, patchy swellings in the skin) or angioedema (swelling of the lips, eyelids, hands or feet). There are other kinds of rashes that can occur, some of which are serious, and some of which are not. Your personal doctor or an allergist can help you decide.

Q: can you still be treated for most infections if you have a penicillin allergy?

Yes: Despite increasing antibiotic resistance, there usually is another antibiotic that can be found. If this is not the case, and there is a serious need for penicillin, many penicillin allergies can be desensitized. This procedure takes place in the hospital and only lasts for the duration of time that you are taking penicillin, but is effective. So in emergencies, there are still options.

Question 1

is it dangerous to eat moldy bread if you have a penicillin allergy?

Accepted Answer

No: Most mold on bread is rhizopus, not penicillium, and would not cause a reaction in those with allergy to the drug penicillin. There have been a few penicillium molds producing penicillin found in some sausages and cheeses, but generally, there probably is not enough penicillin to cause a reaction, since this is almost never seen. The usda recommends that moldy breads be discarded for everyone.

Question 2

i accidentaly ate a slice of bread until i noticed it has mold on it. should i be concerned? i have a penicillin allergy.

Accepted Answer

Mold : If nothing has happened by now then everything is good

Question 3

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

Accepted Answer

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.

Question 4

is rash normal for a penicillin allergy?

Accepted Answer

Yes: It's typical for any drug allergy.

Question 5

how can i treat a penicillin allergy rash?

Accepted Answer

Stop medication: You will need to stop the medication, take an allergy pill and or steriod depending on how severe the allergic reaction is

Question 6

how long does a penicillin allergy rash take to clear?

Accepted Answer

Up to 30 days: Drug allergies can resolve in a few days and may persist for several weeks until the residual penicillin by products are cleared from body.

Question 7

can you take cefaclor if you have a penicillin allergy?

Accepted Answer

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

Question 8

how long does it take a rash due to a penicillin allergy to clear?

Accepted Answer

< 7 - 10 days: Antibiotics like penicillin can cause different types of rashes that can vary in how long they persist.  The classical true penicillin allergic rash is hives and once the penicillin is stopped usually resolves in less than 7-10 days.  Occasionally this can trigger more prolonged hives.  Other rashes from penicillin not due to true allergy would include small red bumps that usually lasts < 1-2 wks.

Question 9

is there a particular type of rash associated with penicillin allergy?

Accepted Answer

Measles-like: Most rashes with penicillin are "morbilliform" or measles-like. More serious penicillin allergy may result in hives (itchy, patchy swellings in the skin) or angioedema (swelling of the lips, eyelids, hands or feet). There are other kinds of rashes that can occur, some of which are serious, and some of which are not. Your personal doctor or an allergist can help you decide.

Question 10

can you still be treated for most infections if you have a penicillin allergy?

Accepted Answer

Yes: Despite increasing antibiotic resistance, there usually is another antibiotic that can be found. If this is not the case, and there is a serious need for penicillin, many penicillin allergies can be desensitized. This procedure takes place in the hospital and only lasts for the duration of time that you are taking penicillin, but is effective. So in emergencies, there are still options.

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Doctor answers about:

Penicillin allergy ate moldy bread

A member asked:

Is it dangerous to eat moldy bread if you have a penicillin allergy?

A member asked:

I accidentaly ate a slice of bread until i noticed it has mold on it. should i be concerned? i have a penicillin allergy.

A member asked:

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

A member asked:

Is rash normal for a penicillin allergy?

A member asked:

How can i treat a penicillin allergy rash?

A member asked:

How long does a penicillin allergy rash take to clear?

A member asked:

Can you take cefaclor if you have a penicillin allergy?

A member asked:

How long does it take a rash due to a penicillin allergy to clear?

A member asked:

Is there a particular type of rash associated with penicillin allergy?

A member asked:

Can you still be treated for most infections if you have a penicillin allergy?

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