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Doctor insights on: Bactrim Allergy In Children

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Bactrim allergy would I be allergic to cipro (ciprofloxacin)?

Bactrim allergy would I be allergic to cipro (ciprofloxacin)?

Not necessarily: They are not in the same class of antibiotics, so being allergic to Bactrim does not imply you would also be allergic to cipro (ciprofloxacin). ...Read more

Dr. John Chiu
2,638 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 you use tobramycin ophthalmic drops with a sulfa/bactrim allergy?

Can you use tobramycin ophthalmic drops with a sulfa/bactrim allergy?

Yes: They're different. However, no guarantee there won't be another allergy. ...Read more

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Can I use the following topical: Prosacea Rosacea Treatment Gel, if I have a Sulfa/Bactrim Allergy? Sulfer is an ingerdient listed on the box, is that the same thing?

Can I use the following topical: Prosacea Rosacea Treatment Gel, if I have a Sulfa/Bactrim Allergy? Sulfer is an ingerdient listed on the box, is that the same thing?

Yes: Avoid topical sulfa also. There are other creams or lotions not containing sulfa yet at least as effective.
However sulfate or sulfite are not the same and needs not be avoided. ...Read more

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Bactrim (sulfamethoxazole and trimethoprim) allergy questions?

Bactrim (sulfamethoxazole and trimethoprim) allergy questions?

Bactrim (sulfamethoxazole and trimethoprim) allergy: Most commonly a rash. Sulfa drug.

Get a more detailed answer ›
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Bactrim (sulfamethoxazole and trimethoprim) allergy --what do I do?

Bactrim (sulfamethoxazole and trimethoprim) allergy --what do I do?

Avoid it: Simply avoid the drug. Inform all your doctors - current & future. If you need an antibiotic, that's one you cannot take. There are alternative antibiotics. ...Read more

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Bactrim (sulfamethoxazole and trimethoprim) allergy - timing and symptoms?

Bactrim (sulfamethoxazole and trimethoprim) allergy - timing and symptoms?

Rash.: Most common side effect or allergy to Bactrim (sulfamethoxazole and trimethoprim) is a rash. Often occurs a few days into the course of treatment, but may occur within a few hours of first dose especially if due to a true allergy to bactrim (sulfamethoxazole and trimethoprim). ...Read more

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If I have a bactrim (sulfamethoxazole and trimethoprim) allergy how fast when symtpoms appear after taking it?

If I have a bactrim (sulfamethoxazole and trimethoprim) allergy how fast when symtpoms appear after taking it?

Sulfonamides: Depends on what the reaction is. Ige mediated allergy such as hives and anaphylaxis can occur in minutes. ...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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Ok on bactrim 2x/day. Md raised to 2 pills b.I.D. Felt "flushy" (fullness in face) after 1st double dose but ok later. After 2nd still feel uncomfortable. Allergy or just too much medicine? Benadryl (diphenhydramine)?

Ok on bactrim 2x/day. Md raised to 2 pills b.I.D. Felt "flushy" (fullness in face) after 1st double dose but ok later. After 2nd still feel uncomfortable. Allergy or just too much medicine? Benadryl (diphenhydramine)?

Tell your PCP: Tell your pcp what you are experiencing. He/she can either reduce the dose or put you on something else. It is hard to say if it is an allergy or too much meds. Benadryl (diphenhydramine) will get rid of itches but not flushing. ...Read more

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I have taken bactrim (sulfamethoxazole and trimethoprim) many times w/out incident. Am I at risk for stevens johnson each time I take it or only if I have sulfa allergy?

I have taken bactrim (sulfamethoxazole and trimethoprim) many times w/out incident. Am I at risk for stevens johnson each time I take it or only if I have sulfa allergy?

Each time: Everyone is at risk of having sjs from sulfa drugs and other drugs carry that risk too. These reactions are idiosyncratic and are not predictable. ...Read more

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Is this possible bactrim (sulfamethoxazole and trimethoprim) allergy if it hurts when I pee it out?

Is this possible bactrim (sulfamethoxazole and trimethoprim) allergy if it hurts when I pee it out?

No, U still have: Cystitis or urethritis. Uti symptoms usually improv after acouple of days on the correct antibiotic. You may need to be on a different antibiotic if symptoms persist whilst you are taking bactrim (sulfamethoxazole and trimethoprim). You may need to get a urine culture & sensitivities to identify the optimal antibiotic for you. ...Read more

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If allergic to Bactrim (sulfamethoxazole and trimethoprim) & Ceclor, is allergy to all sulfa drugs & cephalosporins assumed?

If allergic to Bactrim (sulfamethoxazole and trimethoprim) & Ceclor, is allergy to all sulfa drugs & cephalosporins assumed?

Only if true allergy: Often, a side effect to a particular drug may by mistaken as an allergic reaction to a drug. If what you have experienced is a true allergic reaction, then you should avoid these types of drugs. ...Read more

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How can I test if I'm allergic to doxycycline? I took bactrim (sulfamethoxazole and trimethoprim) and had a bad reaction. Is it likely/probable to have a similar allergy to doxycycline?

How can I test if I'm allergic to doxycycline? I took bactrim (sulfamethoxazole and trimethoprim) and had a bad reaction. Is it likely/probable to have a similar allergy to doxycycline?

No: They are completely different types of antibiotics so a bactim allergy would not indicate a Doxycycline allergy. If you've never used Doxycycline there is no reason to suspect or look for an allergy to it. ...Read more

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Severe palpitations 8hrs after start Bactrim (sulfamethoxazole and trimethoprim). Nausea & no other symptoms. Side effect or allergy? Should I worry? And if so, when should I seek care?

Severe palpitations 8hrs after start Bactrim (sulfamethoxazole and trimethoprim). Nausea & no other symptoms. Side effect or allergy? Should I worry? And if so, when should I seek care?

Yes: Stop Bactrim (sulfamethoxazole and trimethoprim) immediately although this is may not be an allergic reaction in the absence of any skin involvement, The question is why was Bactrim (sulfamethoxazole and trimethoprim) given in the first place? If the problem worsens or persists, you need to seek medical care. ...Read more

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Can someone with bactrim (sulfamethoxazole and trimethoprim) sulfa allergy take doxycycline?

Can someone with bactrim (sulfamethoxazole and trimethoprim) sulfa allergy take doxycycline?

Yes: There should be no interaction between sulfa or an allergy to Bactrim (sulfamethoxazole and trimethoprim) (which contains a sulfa antibiotic - sulfamethoxazole and another component, trimethoprim) and doxycycline. ...Read more

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My daughter was put on bactrim (sulfamethoxazole and trimethoprim) last night for a bladder infection. She has sulfa allergy. Is it ok?

My daughter was put on bactrim (sulfamethoxazole and trimethoprim) last night for a bladder infection. She has sulfa allergy. Is it ok?

Absolutely NOT!!!!: Do not give your daughter bactrim, (sulfamethoxazole and trimethoprim) which is a sulfonamide (sulfa) and could, if she is truly allergic, produce a life-threatening reaction. If she has already taken it and has no reactions, might continue, but if any reactions stop and see the dr. Who prescribed this. ...Read more

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Can I take an otc antihistamine along with bactrim (sulfamethoxazole and trimethoprim) and prednisone? It is not for allergic reaction from bactrim (sulfamethoxazole and trimethoprim), just for pollen allergy

Can I take an otc antihistamine along with bactrim (sulfamethoxazole and trimethoprim) and prednisone? It is not for allergic reaction from bactrim (sulfamethoxazole and trimethoprim), just for pollen allergy

Yes: However, you may find that the prednisone (assuming you're using it for something else) helps more for the pollen allergy than antihistamine. If you are receiving treatment for chronic or worsening sinus pressure/infection, then I strongly recommend seeing an Allergist to get help in the future. Recurrent sinus infections will persist unless the allergy is addressed properly. Good luck! ...Read more

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Have a 17-year-old taking Bactrim sulfamethoxazole tmp wondering if there will be any drug interaction if she takes an herbal allergy pill that I got at the health food center that has vitamin A, C, pantothenic acid, calcium, zinc, quercetin, n-acety

Have a 17-year-old taking Bactrim sulfamethoxazole tmp wondering if there will be any drug interaction if she takes an herbal allergy pill that I got at the health food center that has vitamin A, C, pantothenic acid, calcium, zinc, quercetin, n-acety

Probably OK, but...: I doubt there is any serious potential for an adverse interaction. However, one of the problems with "natural" medicines, herbal products, and nutritional supplements, etc is that their exact contents often are unknown, And even when known, there is little research on interations with other drugs. So hard to be certain -- but probably no problem. ...Read more

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PAINFUL blisters in mouth & vagina due to Bactrim (sulfamethoxazole and trimethoprim) allergy. Ok to put benzocaine cream on outer vag, offers a little relief. What else can I use? Help!

PAINFUL blisters in mouth & vagina due to Bactrim (sulfamethoxazole and trimethoprim) allergy. Ok to put benzocaine cream on outer vag, offers a little relief. What else can I use? Help!

Symptomatic relief: Is best after discussion with your PCP or doctor. Make sure this is documented in your chart as ALLERGY TO BACTRIM/SULFAS. The symptomatic relief is perhaps the best, like ice chips, no hot, spicy, foods. Keep it bland, hydrating, easy to digest as your entire throat may also be affected down to your gut. Tepid, soothing, nonstinging baths like Aveeno (oatmeal) may be helpful. No chemical shampoos or soaps. ...Read more

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I have had a kidney transplant my allergy doctor want me to take bactrium is this ok.

I have had a kidney transplant my allergy doctor want me to take bactrium is this ok.

Ask your doctor: It is good that you asked your doctor and i'd recommend doing as your doctors recommend. If you are still unsure, you can always get a second opinion or ask other doctors involved in the transplant process. They can communicate with each other and come up with a treatment plan. ...Read more

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Can children take Bactrim (sulfamethoxazole and trimethoprim)?

Can children take Bactrim (sulfamethoxazole and trimethoprim)?

Bactrim (sulfamethoxazole and trimethoprim) indications: Bactrim (sulfamethoxazole and trimethoprim) and similar antibiotics are frequently used in children and safe when appropriately dosed according to weight. Those with Sulfa allergies should avoid this medication. ...Read more

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Culture + for staph around buttocks-how quick for rash to heal? Been on bactrim (sulfamethoxazole and trimethoprim) 3 days? How contagious is it? Have 2 children. Worried.

Culture + for staph around buttocks-how quick for rash to heal? Been on bactrim (sulfamethoxazole and trimethoprim) 3 days? How contagious is it? Have 2 children. Worried.

Staph: To keep spread of the infection to a minimum take warm soapy baths to which you have added 3-4 tablespoons of bleach to the bath water. Apply antibiotic ointment like bactroban (mupirocin) to your rash after the bath. Hand washing with soap and water is also in order. ...Read more

Bactrim (Definition)

Trimethoprim and sulfamethoxazole, cotrimoxazole is a combination antibiotic that is used to treat a ...Read more