Bacterial dermatitis or skin infection (pyoderma) is usually secondary to an underlying disease, such as parasites, an endocrine disease or allergies against fleas or food ingredients.
It occurs when the skin’s natural defenses break, allowing an overgrowth of bacteria (such as Staphylococci).
Other organisms, such as yeast and fungal organisms, can also take advantage of the skin changes and multiply and grow.
Bacterial dermatitis can occur anywhere on your cat's body. Chin acne is also common.
Consult your veterinarian, who will focus on treating the underlying problem and advise you on managing the condition, which will probably include a topical product to help restore the skin barrier.