👉 Pseudoerysipelas is a type of skin disorder that can occur in dogs, especially in older dogs. It is characterized by the appearance of small, red, and hard masses on the surface of the skin. These masses are often found around the eyes, nose, mouth, ears, and under the nails. The exact cause of pseudoerysipelas is not fully understood, but it is thought to be caused by a combination of factors including: 1. Inflammation: The immune system