My dog has red spots, scabs, and yellow crust, but isn't itching. What is it?

Question

My dog's back has many red spots of different types, some are red blotches and some are red scab like things and some have yellow crust. Does anyone know what this could be? He doesn't itch his back so I don't think it's flea bites. Is it staph? I'm not sure thanks! He is also on a monthly flea preventative to clear that as well.

Ann Dion, DVM · Accepted Answer

Hello. What you are describing sounds like a secondary skin infection might be present (the yellow crusts and scabs suggest some pus and therefore bacteria). The underlying cause of the infection could be due to many causes including fleas (some products are not effective so check with your vet if the product you are using is a good one), 'hot spots' which is a skin infection that usually occurs when dogs get wet and then aren't dried properly afterwards, other skin parasites, or other underlying causes that are more rare and severe (immunosuppression, cancer, etc). Either way, it sounds like your dog won't get better without some medications and the spots may spread. I would recommend a visit with your veterinarian to look at the spots as well as get treatment for them. They may discuss performing a skin scraping with you as well.

My dog has red spots, scabs, and yellow crust, but isn't itching. What is it?

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