Introduction: The winter weather is very cold, it is easy to cause the baby cold, cold, viruses and bacteria will also take advantage of the opportunity to “mess”, how to early detection of the baby’s condition from the small details of daily life, take good care of the baby, prevention of disease, is a matter of careful observation of every parent. Symptoms Influenza is a highly contagious and infectious disease caused by viral transmission. The incubation period of influenza is mostly 1 to 5 days, usually 2 days. If a baby is infected with the influenza virus, the typical symptoms are: 1) sudden high fever, with a body temperature of 38.3℃~40℃, usually lasting 2-3 days, rarely more than 5 days; 2) muscle pain, mainly back muscle pain; 3) sore throat and cough, mainly due to damage to the epithelial cells of the trachea; 4) other accompanying symptoms such as: runny nose, headache, burning sensation in the chest and Other accompanying symptoms such as: runny nose, headache, burning sensation in the chest, and eye (such as eye pain, photophobia) symptoms. If the flu is not properly cared for and the symptoms are not relieved or controlled, it may lead to complications such as pneumonia, myocarditis, chronic bronchitis, and other chronic lung disorders. Among them, pneumonia is the most common, and most of them are bacterial pneumonia. Prevention Winter is a season of frequent virus activity, especially if the peak of the epidemic virus, parents are advised to avoid taking their babies to poorly ventilated, crowded places, such as cinemas, underground supermarkets, etc., to avoid respiratory infections. You should also add or remove clothes for your baby at any time with the change of ambient temperature and climate to avoid your baby catching cold. To prevent your baby from getting the flu, the most important thing is to strengthen your baby’s immunity, of which the most crucial is a balanced diet. During breastfeeding, if possible, mothers should breastfeed their babies and provide them with scientific and correct complementary foods. After weaning, the baby should also be provided with a balanced diet. Many nutrients in the diet are related to the immune function of the baby, such as calcium, iron, zinc, vitamin A, vitamin C and B vitamins. With a balanced diet, no picky eating, good hygiene and physical exercise, your baby will naturally have a stronger immune system and will not be easily attacked by the flu. Medical treatment If your baby has the flu, he or she should first take relevant medications under the guidance of a doctor, such as antipyretic, antiviral and symptomatic medications. Parents should also take good care of the baby at home, let the baby drink more water, rest, avoid strenuous exercise, and provide the baby with easily digestible, soup-like food, not too much protein-based food and food that is easily “hairy”, such as eggs, fish and shrimp. Closely observe the changes of the baby’s condition, if the condition worsens or does not improve after three days of treatment and care, you should go to the hospital for consultation or follow-up in a timely manner.