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Doctor insights on: Keflex Allergy In Children

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What is the definition or description of: Keflex allergy?

What is the definition or description of: Keflex allergy?

Keflex allergy: Keflex (Cephalexin) is an antibiotic. An allergy occurs when your body’s immune system creates antibodies to a foreign substance causing a reaction that can be mild to severe. For potential adverse reactions see: https://www. Drugs. Com/keflex. Html ...Read more

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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How can you tell if you have a cephalexin (keflex) allergy?

How can you tell if you have a cephalexin (keflex) allergy?

Probably rash, etc.: Symptoms include rash, itching, swelling, trouble breathing, or red, blistered, swollen or peeling skin. Overall, allergies are seen in less than 0.1% of patients with this versus about 1% to 10% of those with penicillin allergy. ...Read more

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Have keflex allergy...Any other antibiotics I need to avoid?

Have keflex allergy...Any other antibiotics I need to avoid?

Cephalosporins: You should avoid all cephalosporin antibiotics ie. Vantin, Ceftin, (cefuroxime) Suprax, Rocephin, Ancef, Fortaz, Cefepime etc. There is a low risk of cross allergenicity with penicillin antibiotics. If you had immediate hypersensitivity- hives, anaphylaxis or laryngeal edema, avoid penicillin class drugs. ...Read more

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I got allergy from penicillin 45 yrs ago when I was 8 yrs, since then I have not used it. Now due to UTI I am given keflex. Shd I take it. Advice plz?

I got allergy from penicillin 45 yrs ago when I was 8 yrs, since then I have not used it. Now due to UTI I am given keflex. Shd I take it. Advice plz?

Usually okay.: We were taught for years that there is about a 10% risk of being allergic to cephalosporins (like Keflex) in people who were allergic to drugs in the penicillin family. Later research has said that is a myth, and there is less than a 1% risk depending on the type of cephalosporin. See http://www. Ncbi. Nlm. Nih. Gov/pubmed/21742459. Talk to your doctor about your fears, though. ...Read more

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Why would I suddenly have so many med allergies (hives, etc?) allergic to nsaids, opiates, keflex, and more. All within a couple yrs. Why?

Why would I suddenly have so many med allergies (hives, etc?) allergic to nsaids, opiates, keflex, and more. All within a couple yrs. Why?

It is uncommon: First you need to describe what kinds of problem you have had with each of the drugs since some may not really be from an allergy. Becoming "allergic" to drugs with unrelated chemical structure in 2 years is also rare. You need to consult an allergist to help you sort this out. ...Read more

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Is there another drug combination for diverticulitis besides Flagel? I am also taking Bactrim due to allergies to Cipro, (ciprofloxacin) Keflex and Penecillin.

Is there another drug combination for diverticulitis besides Flagel? I am also taking Bactrim due to allergies to Cipro, (ciprofloxacin) Keflex and Penecillin.

Antibiotic allergies: You need the help of an ID doctor-since they are experts in antibiotics. First, I would want to 'define' ur allergies further-because sometimes a patient is labeled as 'allergic' & they aren't really allergic at all. That is really important. If ur truly allergic to penicillin, cephalosporins & cipro (ciprofloxacin) which is a fluoroquinolone, ur options are quite limited for oral therapy. Doxycycline might help. ...Read more

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I have a severe allergy to shell fish. My doc just prescribed keflex, because I am allergic to penicillin, too. I took a benadryl, (diphenhydramine)?

I have a severe allergy to shell fish. My doc just prescribed keflex, because I am allergic to penicillin, too. I took a benadryl, (diphenhydramine)?

See detail: Being allergic to shellfish and being allergic to antibiotics are two different things. They are not related. However, as the other doctor indicated, patients that are allergic to penicillin should not (in general) take keflex. Your shellfish allergy needs to be taken seriously and not only should you strictly avoid shellfish, you should carry injectable Epinephrine in case you have exposure. ...Read more

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Does Keflex cause yellow teeth? I've also been feeling very dizzy and have a sunburn rash. I do have an allergy to penicillan. Is this related?

Does Keflex cause yellow teeth? I've also been feeling very dizzy and have a sunburn rash. I do have an allergy to penicillan. Is this related?

Not common.: These are not typical side effects of Keflex Other antibiotics are more likely to do this. Are you taking any other meds or supplements? Certain foods and liquids can also cause yellowing of the teeth. Ask your doc to be sure and to find out what else could be going on that might cause this. We don't know why you are taking Keflex in the first place either. Call your doc! ...Read more

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My doctor put me on keflex for allergies. I had a normal cbc. I'm confused. I have slight sore throat left ear pain and globus hysteria with it.????

My doctor put me on keflex for allergies. I had a normal cbc. I'm confused. I have slight sore throat left ear pain and globus hysteria with it.????

Keflex: Keflex won't help allergies, but an antihistamine such as Claritin (loratadine) would be helpful. If I have to guess, your doctor put you on Keflex for your sore throat and/or earache ...Read more

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What is the definition or description of: cephalexin allergy?

What is the definition or description of: cephalexin allergy?

Drug allergy?: Some patients with an allergy to penicillin could develop an allergic reaction to cephalexin, which is related in chemical structure to penicillin. ...Read more

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What is the definition or description of: Keftabs (cephalexin) allergy?

What is the definition or description of: Keftabs (cephalexin) allergy?

Keftabs allergy: Keftabs (cephalexin) is a is a cephalosporin antibiotic. Allergic reactions occur when your body produces antibodies to substance that are harmless to most. Reactions may be mild to severe.
for potential adverse reactions see: https://www. Drugs. Com/sfx/cephalexin-side-effects. Html ...Read more

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My doctor gave me cephalexin for sinus infection and montelukast for allergies? Is that good? Will work?

My doctor gave me cephalexin for sinus infection and montelukast for allergies? Is that good? Will work?

Yes it is good: Yes Montelucast is used for allergies and cephalexin is a broad spectrum antibiotic used for Bacterial Infection of Sinuses and other respiratory tract as well ...Read more

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Took cephalexin for infection. Now have itchy, flaky skin on my scalp, in my ears, & pelvic area. Allergy meds/creams don't work. Still have inital infection.?

Took cephalexin for infection. Now have itchy, flaky skin on my scalp, in my ears, & pelvic area. Allergy meds/creams don't work. Still have inital infection.?

Allergy vs fungus: This could be an allergic reaction although it should be everywhere on your body, not just scalp, ears and groin. It could very well be that the Cephalexin has suppressed your immune systems synergistic bacteria that keeps typical candidal fungus species at bay and this is the side effect. Happens a lot with women treated for urinary tract infxns then getting yeast infxn due to the antibiotic. ...Read more

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2yo with infantigo and MRSA on antibiotics for 2 weeks getting worse keflex and other children hospitalize him?

2yo with infantigo and MRSA on antibiotics for 2 weeks getting worse keflex and other children hospitalize him?

Maybe: Any child or adult with a bacterial infection, who is not getting better while taking oral antibiotics, should be rechecked by the doctor to see what changes in the treatment plan are needed. Sometimes, a patient has to be admitted into the hospital for I.V. Antibiotics. ...Read more

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12yo son's doc thinks he has meckel diverticulitis. Doc wrote keflex for 7 days then maybe surgery. Wbc 19k and low fever. Wait or go to children er?

12yo son's doc thinks he has meckel diverticulitis. Doc wrote keflex for 7 days then maybe surgery. Wbc 19k and low fever. Wait or go to children er?

GO TO ER: Go to the er
diagnosis of meckel diverticulitis is always confused with appendicitis
i will not treat this condition with oral antibiotics need evaluation by a surgeon and possible exploration. ...Read more

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Can keflex 500 mg cure sypillis?

Can keflex 500 mg cure sypillis?

No -- don't take it: Cephalexin is the worst of two worlds for syphilis treatment: It would not work reliably; but it has partial activity against syphilis bacteria and could therefore interfere with future testing for it. If you think you have syphilis or were exposed, you need a penicillin injection; nothing else is reliable. Syphilis kills, causes strokes, and makes people blind. Don't mess around: see a doctor! ...Read more

Keflex Allergy (Definition)

Keflex (Cephalexin) is an antibiotic. An allergy occurs when your body’s immune system creates antibodies to a foreign substance causing a reaction that can be mild to severe. For potential adverse reactions see: ...Read more