QUESTION & ANSWER
Q: How long does it take for cephalexin to work on skin infection?

A:

Cephalexin antibiotic begins to kill the bacteria causing a skin infection very quickly. However, you may not notice the skin infection improving for 2 to 3 days. Follow the directions on your cephalexin medication bottle—and finish all doses of cephalexin, even after the skin infection looks and feels better.

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  1. Cephalexin (Oral Route). Mayo Foundation for Medical Education and Research. https://www.mayoclinic.org/drugs-supplements/cephalexin-oral-route/description/drg-20073325 
  2. Cephalexin Prescribing Information. Drugs.com. https://www.drugs.com/pro/cephalexin.html#s-34068-7 


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