A 19-year-old male asked:
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which antibiotic is better for uti? known allergy is to cipro. prescribed keflex. how long to take affect. fever still around 100 -102.4 after 4hrs of 1st pill. doing as old to alternate 1000mg tylenol & 800mg ibuprofen every 4hrs. 44yr male. thanks?

1 doctor answer
Dr. James Ferguson
45 years experience Pediatrics
Hard to say: The best way to anticipate success of an antibiotic is to have a culture of the germ where sensitivity is tested. Without that, you rely on clinical change. The germ in these infections has had a head start creating the problem. I would expect a decline in fever within 24/36 hrs after starting the med as a good sign it will work. I would not expect it to change the symptoms in 4 hours.
Answered on Sep 16, 2020
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A 39-year-old female asked:
Dr. Jeff Livingston
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Doctor : Are these prescribed by a doctor? Normally a UTI can easily be treated. The urine culture determines what antibiotics are the best choices.
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Check with doc first: The bacteria that cause UTI can be resistant to many antibiotics. However, it would be unusual for a UTI to resist both cephalexin (Keflex) and ciprof ... Read More
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Dr. Heidi Fowler
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Sore Throat: How high a fever? How was Strep throat diagnosed? I think it is time to give your doctor a ring and to advise that you are still febrile.
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