Introduction: With the recent hot and cold temperatures, babies can easily catch a cold and fever. Doctors suggest that parents do not have to be overly nervous about the common cold, should first be at home to do a good job of observation and care of the child, and for the hospital infusion and the use of antibiotics should be very cautious, but if the baby has a fever, parents must pay attention to avoid causing other diseases. 1, the number of babies with colds and fevers increases The temperature is unstable, children can easily get cold, parents must pay attention when adding clothes to their children, try not to wear too much or suddenly wear thin. When babies have colds, especially those under 1 year old, parents should send them to the hospital promptly for medical attention. Because they have weak resistance, their condition will change quickly. For older children, on the other hand, there is no need to rush to the hospital and parents can first do a good job of observation and care at home. Give the child a light diet, drink enough water, and make sure the child has enough rest. 2, the fever should be reduced first When the baby has a cold, parents should be more cautious if there is a fever. For babies within 1 year of age, if fever symptoms appear, seek medical attention promptly. For older babies, such as fever symptoms, when less than 38.5 ℃, do not need to rush to use drugs, you can choose physical cooling, such as ice bags on the forehead, wipe the neck, armpits, groin, etc. with warm water. And when the baby’s temperature exceeds 38.5 ℃, you should choose to use antipyretic drugs plus physical cooling method. Parents must carefully consult with the doctor if they are not sure about the daily selection of medicine. During the observation period, if the child is in good spirits except for mild fever, cough, runny nose and other cold symptoms, parents can not be too anxious. If the child’s condition does not improve after three days of taking the medicine, he or she should go to the hospital promptly. 3, the daily dressing of infants and young children should be appropriate Infants and young children are the focus of protection for the cold population, infants and young children’s respiratory and thermoregulatory center development is not yet sound, if the daily life of infants and young children covered too long or over warmth, the temperature around the child’s body will rise sharply, so that the organism is in a hyperthermic state. At this time, as infants and toddlers are unable to break free from the hot environment, they can only sweat a lot resulting in dehydration, which can seriously lead to damage to the child’s brain nervous system. The doctor recommends that children wear the same number of pieces of clothing as adults or one less than adults. 4, the best choice to take the temperature electronic thermometer child’s cold or discomfort, many parents’ first reaction is to take the temperature, many families are still using the traditional mercury thermometer. However, many parents do not know that the mercury thermometer may have the danger of poisoning after breaking. Therefore, parents try to choose an electronic thermometer when taking the temperature of their baby. If there is a mercury thermometer at home once broken, mothers and fathers should not panic, and do not handle it casually. When the mercury thermometer breaks, the mercury will form a sphere and roll down. At this time, to turn off all indoor heating devices, open the window ventilation; then put on gloves, with a small shovel to collect the mercury buried deep, or sprinkle some sulfur powder on top, sulfur and mercury reaction can generate insoluble mercury sulfide, the harm will be greatly reduced. As mercury can evaporate into a gaseous state at room temperature, it is easy to be sucked into the respiratory tract, causing poisoning, so it is best to wear a mask when dealing with the mercury scattered on the ground. If the wound touches mercury, it should be examined by the poison control department of the hospital, and the poisoning phenomenon should be treated again.