Long-haired dog breeds require regular grooming to keep their coats healthy and free of tangles. This typically includes daily brushing to prevent mats and knots from forming. Regular baths with a suitable dog shampoo are also important to keep their fur clean and free of debris. Trimming their fur regularly, especially around the eyes, ears, and paws, can help prevent irritation and infection. Additionally, long-haired breeds may need professional grooming services periodically to maintain their coat's health and appearance.