When combing a dog, comb it along the dog's hair. Don't use too much force to avoid damaging the dog's skin. When combing, be careful not to hurt the dog, especially if there are knots. For long-haired dogs, it is best to comb the dog's hair once a day. When combing, check whether there are parasites or skin diseases on the dog. If there are any parasites or skin diseases, they need to be treated in time to avoid aggravation.