A 49-year-old female asked:
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this is my 15th day of 15 day treatment w/bactrim for sinus infection. 15 min. after taking next to last pill in bottle, got hives. related?

1 doctor answer
Dr. Andrea Brand
Specializes in Family Medicine
Possible allergy: If a person is allergic to a medication, it may take repeated exposure to the drug before the development of the allergic symptom or sign, for example, itching, hives or rash. So getting hives on the last day of Bactrim (sulfamethoxazole and trimethoprim) therapy is suggestive of allergy to the medication. Please inform your health care provider of this reaction.
Answered on Oct 17, 2018
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Related questions:

A 56-year-old male asked:
Dr. John Munshower
29 years experience Family Medicine
OK: Good luck. Finish the full course of Bactrim (sulfamethoxazole and trimethoprim). Possibly the Albuterol and or terbutaline made you dizzy, BP is not ... Read More
A 27-year-old female asked:
Dr. David Lipkin
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See answer: Neither Bactrim or Cipro (ciprofloxacin) are recommended for Acute Bacterial Sinusitis. Most cases get better without antibiotics. For cases requirin ... Read More
A 25-year-old female asked:
Dr. Dwarka Rathi
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Bactrim (sulfamethoxazole and trimethoprim) : Will cover all u might have
1
1 thank
A 48-year-old female asked:
Dr. Hunter Handsfield
52 years experience Infectious Disease
Usually no problem: It indeed can be alarming to read lists of drug side effects. But for Bactrim, (sulfamethoxazole and trimethoprim) most of them are rare and few are p ... Read More

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