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My puppy has an open sore with green pus and fleas. What to do?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Female | unspayed | 11 months and 9 days old

My puppy has what looks like and open sore with green pus on the hair around it, she also has fleas at the moment. I'm scheduling a vet appointment now, but could someone try to identify what this is and how I can help in the mean time? I gave her a hot bath, cut the hair around the sore, and put neosporin on it.

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1 Answer

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Answered By Ana M, DVM

Veterinarian

Published on February 10th, 2019

Thank you for submitting your question regarding Stella. I am glad that she will be seeing her veterinarian. She may have created an open wound from scratching due to the fleas. Is there any chance she could have been bitten by another pet? This can result in a similar wound. She will likely need oral antibiotics. Her veterinarian will assess the wound. If it is superficial, it can be managed with antibiotics and possibly a cleansing solution. Deep wounds sometimes need surgery. Do not allow her to scratch the area if at all possible. I hope this information helps!

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