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Dr. Michael Salkin
Dr. Michael Salkin, Veterinarian
Category: Dog
Satisfied Customers: 28479
Experience:  University of California at Davis graduate veterinarian with 45 years of experience.
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My dog has been scratching at something at s undercarriage.

Resolved Question:

Hi there
My dog has been scratching at something at his undercarriage. It is really bothering him and has been for a couple of weeks. I did a flea treatment about 10 days ago thinking that was the problem but I am now worried it might be a tick or....?
Here is a photo:
https:[email protected]/27573880231/
Can you advise please?
Thanks
Submitted: 1 year ago.
Category: Dog
Expert:  Dr. Michael Salkin replied 1 year ago.

Thank you for the excellent photo of an epidermal collarette. These are roughly circular skin lesions most often indicative of a Staph infection of the skin (pyoderma). They start out as pustules and then spread out in a circular manner. The center quiets down and often hyperpigments (as shown) but the rim can stay actively infected and inflamed. This is addressed with a prescription systemic antibiotic such as one in the cephalosporin class (cephalexin, e.g.) dosed for 3-4 weeks and 1 week past clinical signs. Bathing twice weekly in a chlorhexidine- or benzoyl peroxide-containing shampoo should hasten remission. These shampoos can be found over the counter in your local feed/agricultural merchant store, online, or at Bandha's vet hospital.

Please respond with further questions or concerns if you wish.

Customer: replied 1 year ago.
Thanks so much. A few months ago, he had a recurrent lip fold pyoderma that finally went away after about 4 long courses of antibiotics. He also lost 3 kilos (I'm now giving him power plus supplement). I am worried that all of this could indicate pamphigus. What do you think? He seems well in himself.... Thank you
Expert:  Dr. Michael Salkin replied 1 year ago.

Sunlight and chronic allergic dermatitis might trigger some cases of pemphigus. I'm not aware of pyoderma being a trigger, however.

You're quite welcome. I can't set a follow-up in this venue so please return to our conversation - even after rating - with an update at your convenience. You can bookmark this page for ease of return.

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Expert:  Dr. Michael Salkin replied 1 year ago.

Thank you for your kind accept. I appreciate it.

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