The baby’s sneezing and runny nose is usually caused by cold, cold or allergy, if the symptoms last for a long time, you need to go to the hospital for examination to determine the cause and treat accordingly. 1.Cold: the baby’s resistance is weak, if the temperature is cold and does not keep warm, it is easy to get cold and cause sneezing and runny nose. Parents should pay attention to add clothes to the baby, let the baby stay in a warm room, use a warm towel to warm the root of the nose, the symptoms will gradually disappear on their own; 2, cold: usually accompanied by cough, sore throat, fever, vomiting and other uncomfortable symptoms, need to give the baby under the guidance of the doctor to take symptomatic treatment drugs, such as fever can be applied to acetaminophen, can also be applied to Chinese medicine preparations. Also need to drink more hot water to promote metabolism and relieve the discomfort symptoms. If it is difficult to reduce fever to 38.5℃ or more, or if the symptoms cannot be relieved for a long time, it is recommended to go to the hospital promptly; 3. Allergy: mites, dust, pollen, etc. can easily cause allergic rhinitis, and the symptoms can be relieved immediately after leaving the allergic environment. The baby’s allergens should be determined through relevant tests, and if necessary, anti-allergy drugs such as loratadine can be taken to relieve the symptoms. After the symptoms appear, parents should keep the air in the baby’s room circulating and pay attention to eating more fresh fruits and vegetables. After the symptoms subside, take your child to outdoor activities to enhance his or her physical fitness.