Seasonal skin problems in dogs often vary by time of year. During humid summers, dogs may experience greasy, waxy skin with a musty odor, often accompanied by redness and itching in areas like paws, ears, and armpits. In contrast, winter brings dry, flaky skin and cracked paw pads, especially after exposure to road salt. Dogs with allergies are particularly vulnerable, as their skin barrier is weaker, making them more prone to yeast overgrowth and irritation.