Help me identify this rash/spot on my dog's groin area? : r/vet

All you need to know about skin problems in dogs - The Vets

Natural Dog Company Skin Soother, 4 oz Tin, Allergy and Itch Relief for Dogs, Dog Moisturizer for Dry Skin, Dog Lotion, Ultimate Healing Balm, Dog Rash Cream : Pet Supplies

Hello, I just noticed that my dog has developed this thick, dark purple, itchy rash on his groin area. I figured it could be from

Deep pemphigus (pemphigus vulgaris, pemphigus vegetans and paraneoplastic pemphigus) in dogs, cats and horses: a comprehensive review, BMC Veterinary Research

Dog Skin Rashes: Symptoms, Causes, and Cures - PetHelpful

Help me identify this rash/spot on my dog's groin area? : r/vet

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Rash on dog's inner thigh/groin area