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Dr. Andrew Rynne
Dr. Andrew Rynne

Family Physician

Exp 50 years

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    What causes infectious wound after melanoma biopsy?

Infection in postage stamp sized area where a melanoma biopsy was taken. Initially treated with bacitracin but infection set in and after 7 days wound was oozing and painful. Treatment was then started with 500mg Cephalexin twice daily. Now after 3 days there is no reduction in swelling or pain. How long should I wait to see if this medication approach is working. Ray Haney
Fri, 11 May 2018
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Dermatologist 's  Response
Hello and Welcome to ‘Ask A Doctor’ service.
I have reviewed your query and here is my advice.

As per your case history, you are having biopsy site infection. My treatment advice is :

1. Don't scratch the lesion as it may worsen the condition.
2. Apply a mild antibiotic cream like fusiderm cream twice daily on it.
3. Take an NSAID (Nonsteroidal anti-inflammatory drugs) like ibuprofen.
4. Other treatment options are oral antibiotics like levofloxacin, cefadroxil, and azithromycin taken only after consulting a dermatologist.

Hope I have answered your query. Let me know if I can assist you further.

Dr. Harshit Bhachech
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