Redness and cracking at the corners of the child’s mouth may be caused by dryness, fever and other reasons. 1. Dryness: If the child’s usual intake of water is insufficient, it is easy to cause the corners of the mouth red and cracked this symptom, usually pay attention to the child to drink more water to replenish the water, in order to alleviate the symptoms of this dryness. 2. Fever: if the child because of upper respiratory tract infections, urinary tract infections and other reasons lead to fever, at this time there will be dry corners of the mouth, redness, dry cracks. In this case, we should take the child to the hospital as soon as possible to identify the cause and give appropriate treatment. Parents should pay attention to the child’s mental state and other conditions, regularly take the child to the hospital for health checkups, if the child has a dry, red, cracked corners of the mouth, etc., take the child to the hospital as soon as possible to find out the cause of the problem and give appropriate treatment.