Hot spots (acute moist dermatitis) are sudden, localized areas of inflamed, red, and painful skin often moist, itchy, and sometimes smelly. They form quickly when a dog repeatedly licks, chews, or scratches a specific area, trapping moisture and bacteria, which worsens the lesion over hours if untreated. Early detection during grooming helps stop progression. https://petnovax.com/hot-spots-on-dogs/