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Doctor insights on: What To Do If Your Child Gets An Allergic Reaction To An Antibiotic

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How can you tell if your baby is allergic to antibiotics? Is it possible to get an allergic reaction after 7 days of using it?

How can you tell if your baby is allergic to antibiotics? Is it possible to get an allergic reaction after 7 days of using it?

History & exam fit: Allergic reaction to meds usually involves typical itchy rash (measles like or hives). From first exposure to onset of reaction usually 7-10 days and on second exposure within minutes to hours. Get baby to experienced allergist who can examine baby and get detailed history. Except for penicillin there is no reliable skin testing for meds so history, exam are key. Take clear close-up pics of rash. ...Read more

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Dr. John Chiu
2,628 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


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Can someone get an allergic reaction to an antibiotic after finishing the course?

Can someone get an allergic reaction to an antibiotic after finishing the course?

Yes: Yes, you can get the allergic reaction afterwards. Some physicians refer to this as delayed allergic reaction. ...Read more

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I am having an allergic reaction to an antibiotic, what would be my best course of action?

I am having an allergic reaction to an antibiotic, what would be my best course of action?

Stop the medication: Call your prescriber as soon as possible and ask your prescriber advice. If you feel your mouth and throat getting swollen and having trouble to breath have someone to take you to ER. ...Read more

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How can I avoid another allergic reaction to an antibiotic medicine if allergic to penicillin?

How can I avoid another allergic reaction to an antibiotic medicine if allergic to penicillin?

Avoidance: If one is allergic to penicillin then avoidance of penicillin like medications is a requirement. Other classes of antibiotics should be fine but because an individual has one drug allergy they may be at risk for reactions to other classes of drugs. One should also be very clear that moving forward that antibiotics are needed. ...Read more

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How many benadryl (diphenhydramine) is the recommended dose for an adult with an allergic reaction to an antibiotic?

How many benadryl (diphenhydramine) is the recommended dose for an adult with an allergic reaction to an antibiotic?

Label explains: I'd first advise calling your doctor who depending upon the SEVERITY of your reaction may prefer you be seen in the ER. Otherwise, if symptoms are not severe and they've been present for a few hours or so I would simply follow label instructions on the bottle or box of tablets. Careful not to drive after taking them. More questions? Www. Healthtap. Com/drsaghafi Use Key Code: PDXFNR for appointment ...Read more

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I have an allergic reaction to an antibiotic and I have water blisters everywhere. What I can do for comfort?

I have an allergic reaction to an antibiotic and I have water blisters everywhere. What I can do for comfort?

Benadryl (diphenhydramine): Take 25-50mg of benadryl, (diphenhydramine) and stop the offending antibiotic. See your physician as soon as possible to get an alternate agent, and to let them record your allergy. ...Read more

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I have a rash all over my body from an allergic reaction to an antibiotic I was taking, can I still lay in a tanning bed?

I have a rash all over my body from an allergic reaction to an antibiotic I was taking, can I still lay in a tanning bed?

Take a break!: I would not advise it at this time as your body is in the midst of a battle against the antibiotic. Your immune system is on high alert and the UV lights may cause the rash to increase. Secondly, much as our culture loves tan skin as a sign of good health it's an incredible health hazard - leads to premature skin aging, wrinkles and sometimes cancer. http://www. Cdc. Gov/cancer/skin/basic_info/indoor_tanning. Htm ...Read more

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While going through an allergic reaction to an antibiotic I was having stinging nerve pain in fingers and toes now all over body can I have MS now?

While going through an allergic reaction to an antibiotic I was having stinging nerve pain in fingers and toes now all over body can I have MS now?

Criteria for MS: Hi JeriS,
Typically symptoms related to MS are on one side of the body but can be both sides as well occasionally. The symptoms typically go away followed by a period with no symptoms followed by returning of symptoms perhaps elsewhere in the body. If this is the scenario you are experiencing then you may need to consult with a Neurologist who can guide you in the right direction.
Best of luck ...Read more

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Is it possible to develop an allergic reaction to an antibiotic while you're taking it? I'm on my second week of amoxicillin and this morning woke up with red bumps all over. I break out in hives with penicillin and sudafed which is why I ask. Thanks.

Amoxicillin: Amoxicillin is very closely related to penicillin. People with a true penicillin allergy like you (causing hives) should not take amoxicillin. I would suggest stopping the medication and calling your doctor right away to find out what to do next. You may need medication to stop the allergic reaction and perhaps a different antibiotic, depending on the reason it was prescribed.

People have been known to show allergic symptoms after taking antibiotics for several days and even if they have taken the same antibiotic before and have not had problems.

I hope this answers your question. Thanks! ...Read more

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What does an allergic reaction to antibiotics look like?

What does an allergic reaction to antibiotics look like?

Depends: It depends on the nature of the immune response. Allergic antibody (IgE) mediated reactions occur rapidly after ingestion and can involve hives, skin swelling, wheezing, shortness of breath, nausea/vomitting, diarrhea, dizziness, confusion, palpitations, loss of consciousness and even death. A delayed reaction can occur after days on the medicine and would have different constellation of symptom ...Read more

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How typical is an allergic reaction to the antibiotic keflux?

How typical is an allergic reaction to the antibiotic keflux?

Atypical: This medication is safe. A small percentage of people develop allergy, which can be an immediate allergic reaction to Keflex alone, or to the family of antibiotics related to Keflex. Sometimes, particularly in cases of mononucleosis, a rash that is confused with allergy develops after antibiotics are taken. It is best to discuss any symptoms with a physician well-practiced in diagnosing allergy ...Read more

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How long should an allergic reaction symptom to an antibiotic last for?

How long should an allergic reaction symptom to an antibiotic last for?

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

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How long would it take for an allergic reaction to occur to antibiotics?

How long would it take for an allergic reaction to occur to antibiotics?

Immed or 7-10 days: Paitents may exhibit immediate or delayed type hypersensitivity which can range from immediate symptoms to those delayed by 10 days. ...Read more

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What to do for allergic reaction to antibiotic? Finished course. Just wait.

What to do for allergic reaction to antibiotic? Finished course. Just wait.

Antihistamine: A short course of antihistamines like Benadryl (diphenhydramine) will help. It is advisable to have your doctor classify the allergic reaction and document in your medical record the type of antibiotic which caused the reaction.

Please, always follow directions listed on over the counter meds and better yet double check with a pharmacist. ...Read more

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How long does it take to recover from a severe allergic reaction to antibiotics?

How long does it take to recover from a severe allergic reaction to antibiotics?

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

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Is it possible to have an allergic reaction after finishing a round of antibiotics?

Is it possible to have an allergic reaction after finishing a round of antibiotics?

Allegy immed/delayed: Drug allergic reactions often occur after the first few dosed, but can be delayed to later in the course or even after the last dose is taken. Usually the later reactions are less severe, but can on occasion also be life threatening (ie stevens johnson syndrome). ...Read more

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Is it possible to develop an allergic reaction to a drug/antibiotic that you've never had an allergic reaction to in the past?

Is it possible to develop an allergic reaction to a drug/antibiotic that you've never had an allergic reaction to in the past?

Yes...: Developing allergic reactions to some medications esp. Antibiotics would require prior exposure to the medicine. The allergies could be idiosyncratic meaning that it is time and dose independent. ...Read more

Dr. John Chiu
1,042 Doctors shared insights

Allergic Reaction (Definition)

Sensitivities to substances, called allergens, that come into contact with the skin, nose, eyes, respiratory tract, and gastrointestinal tract. They can be inhaled into the ...Read more


Dr. John Leander Po
1,117 Doctors shared insights

Antibiotic (Definition)

An antibiotic is a medicine that slows, stops, or kills germs. The germs are usually bacteria causing an infection in a person, so the person uses antibiotics to help his body get ...Read more