If your child has symptoms of sneezing and nasal congestion, it means that the upper respiratory tract infection is caused by a virus. You can drink more warm boiled water, eat more foods and fruits rich in vitamin C, and also boil some radish water for your child to drink. Use a hot towel on your child’s nose when it is stuffy. When the cold symptoms are not relieved, you can use saline to clean the nasal cavity. In addition, when a child has a viral cold, it can easily be complicated by viral myocarditis. It is important to strictly observe your child’s mental condition during the cold, and if your child is not in good spirits, you need to go to the hospital quickly.