Signs of a possible skin problem
When your pet has a skin problem, you should see your veterinarian. If your pet has a skin problem there will be signs, often times, more than one. These signs are important clues. Here's what you should watch for:
Small pus-filled bumps on a dog or cat's skin are called 'pustules.' Larger pus-filled bumps are called abscesses. When they open they become lesions. The most common cause is a skin infection and the most common bacteria is Staphylococcus spp. ("Staph.") See your veterinarian to help determine the cause and recommend a treatment program.