Horse Veterinary Questions? Ask an Equine Vet.
Welcome to Justanswer. I am Dr. Loretta, a licensed veterinarian, and would like to assist you. I will respond quickly after reviewing your question.
Good Morning and welcome! I am Dr. Loretta, a licensed veterinarian and I am happy to answer your question.
It appears that your mare has developed a staph infection. The staph bacteria is normal flora on the skin and when there is moisture such as humidity and warmth, this can overgrow causing these lesions that you describe. The swelling is secondary to the infection which is most likely scar tissue and/or edema. It will help to continue with the treatments that you are giving along with either Butazoldin or Banamine to decrease the swelling on the ears. Also, since this may be staph, SMZ antibiotic would eb helpful or Cephalexin orally for 1 week to 10 days. You are correct that culturing this area would be helpful but your vet will have to get this done. If you have these medications at your disposal, it will not hurt to start treatment until your vet can examine your mare.
Since there is a minor possibility of a form of mange, worm her with an Ivermectine wormer which would knock this out. Staph infections have been linked to mange disease as a secondary component. As an RN, I hope this make sense to you. Your mare may be somewhat immune suppressed which has allowed this infection. a Complete blood work with a thyroid panel would be useful in determining a cause for your mares condition.Does that make sense to you?
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