To use Vetality Avantect II for your small dog, simply part the fur on the back of your dog's neck until the skin is visible. Squeeze the contents of the tube onto the skin. Do not let your dog lick the application area right after use. Keep your dog dry for a few hours to ensure the product is fully absorbed. Make sure to store the product in a cool, dry place. If your dog has any known allergies or health issues, consult your vet before using this product.