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Doctor insights on: Keflex Staph Boil

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What's stronger keflex or cipro (ciprofloxacin)?

What's stronger keflex or cipro (ciprofloxacin)?

Neither: Both antibiotics are effective bactericidal drugs. Keflex causes time dependent killing while Cipro (ciprofloxacin) causes concentration dependent killing. The 2 drugs have different antibacterial spectrums. In general Cipro (ciprofloxacin) has better activity against gram negative bacteria like pseudomonas while Keflex is more active against gram positive bacteria like staph. And strep. Species. ...Read more

Boil (Definition)

A boil is an infected epidermoid cyst of the skin. Usually related to sebaceous glands, which secrete waxy/oily lubricant ...Read more


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Could keflex still be working for my staph infection even if a new boil has popped up?

Could keflex still be working for my staph infection even if a new boil has popped up?

Cannot say: Since I do not know how long you have been on the Keflex it is hard to say.If you have only been on it for a few days then it is possible for new lesions to occur. ...Read more

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I have a terrible staph infection and just got a new boil after being on keflex for 3 days, does this mean it's resistant?

Probably: Most boils these days are caused by mrsa, which is resistant to Keflex and related antibiotics. A culture of the pus will confirm this. ...Read more

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Was taking keflex for staph didn't take it right and stopped it too soon staph is back will taking it again be effective?

Was taking keflex for staph didn't take it right and stopped it too soon staph is back will taking it again be effective?

Unknown: Short course in appropriately taken may select out for resistant organisms. This is how we loose perfectly good antibiotics. Including over use by physicians. ...Read more

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I'm on long term keflex for reocurring uti. They found staph in urine, now on 7 day course antibiotics (alprim) what's staph how did I get it??

I'm on long term keflex for reocurring uti. They found staph in urine, now on 7 day course antibiotics (alprim) what's staph how did I get it??

May be contamination: Staphylococcus species are commonly found from the skin. It is possible that contamination of the urine sample occurred. However, if you are continuing to have infections proven by cultures, then an evaluation to rule out anatomic abnormalities is needed. This included imaging to make sure the kidneys/ureters are normal and a cystoscopy to ensure the bladder is normal. Talk to a urologist ...Read more

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Is keflex strong enough for staph infection n arm that is moving quickly. See line going from elbow up arm after only 12 hours of first symtoms?

Is keflex strong enough for staph infection n arm that is moving quickly. See line going from elbow up arm after only 12 hours of first symtoms?

Staph is dangerous: Nope. This is the worst drug to be prescribed for the current epidemic of drug resistant staph infections. If you have a line going up from your elbow on this drug you need to get urgent medical attention. ...Read more

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Im on Alprim or Keflex for long term treatment for recurrent uti's. I usually have E. coli but sometimes staph?? I still get uti on my antibiotics!

Im on Alprim or Keflex for long term treatment for recurrent uti's. I usually have E. coli but sometimes staph?? I still get uti on my antibiotics!

Resistant UTI: Bacteria causing UTI vary widely in antibiotic susceptibility, and the more frequently UTIs recur or are treated, the higher the chance of an antibiotic-resistant infection. Resistance to both trimethoprim (Alrpim) and cephalexin (Keflex) isn't rare, especially after repeated treatmnt. You need a urine culture test with testing of the bug for the best antibiotic. See a doctor about it. Good luck! ...Read more

Dr. Neal Kraus
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Staphylococcal infection is a bacterial infection that can cause disease in many parts of the body. Staph infections ...Read more