There are many factors that can cause severe skin irritation in dogs, including allergies, parasites, fungal or bacterial infections, hormonal imbalances, and environmental factors such as humidity or dryness. It is important to consult with your veterinarian if you notice any signs of skin irritation in your dog, such as itching, redness, or flaking, as they can help identify the underlying cause and provide appropriate treatment. Regular use of a gentle, hypoallergenic dog shampoo like THE SENSITIVE ONE can help prevent and alleviate skin irritation.