Muffled fever syndrome, also known as “infant masked hypoxia syndrome” or “infant smothering syndrome”, is due to excessive warmth, cover too long caused by infant hypoxia, high fever, sweating, dehydration, convulsions and coma, and even respiratory and circulatory failure, a common winter emergency. Every year from November to April for the peak incidence of the disease. 1 year old infants, if you do not pay attention to scientific care, most likely to induce this disease. It is mostly caused by over-warming the child or covering the child for too long, also known as “infant blanket hypoxia syndrome”. In a sense, it is a kind of social civilization disease, is due to parents over-indulgence child caused. Infants are young yin and young yang body, internal organs delicate, thermoregulation center is not yet well developed, and sweating function is weak, poor responsiveness, wrapped up too warm and powerless to struggle to get rid of the unfavorable environment, which often results in infants with high body heat, sweating, and in severe cases will cause dehydration and electrolyte disorders, and even circulatory failure. At this time, if the indoor ventilation is poor or dirty air, will also cause respiratory difficulties in infants, shortness of breath or irregular, gray face, lips and nails blue and other symptoms of respiratory failure, can lead to severe hypoxia and the occurrence of convulsions and convulsions or coma. If the rescue is not timely, can quickly shock or even death. Surviving children will also be left with mental retardation, motor disabilities, stupidity, deafness, epilepsy and other serious sequelae of brain injury. As the saying goes, “If you want your child to be safe, you need to be hungry and cold”. Infant smothering syndrome in a sense, it is a social civilization disease, is caused by parents over-indulge their children. Some parents are afraid that the baby cold day wind cold, often to its wear thick, wrapped tightly, covered tightly, and even reuse electric blankets, hot water bags to keep warm, there are people to the baby masked or cradled baby sleep, that this can be both cold and warm, and convenient to take care of the night. I don’t know, love is too much for the harm. This practice of excessive warmth is very easy to induce infant stifling syndrome. Therefore, in the cold season, do not cover the baby too tight, too tight, too thick, not to limit the baby bedding around the hot water bag and other heat sinks; do not give the baby masked sleep or block its mouth and nose with the quilt, in order to prevent the impact of breathing; do not put the newborn baby under the armpit of the mother to sleep, or to let the baby with the nipple to sleep, and advocate mother and baby to be sleep. Once the baby suffocation syndrome, should be sent to the hospital for treatment, do not take it lightly. How to save the baby? Parents who find their children because of overheating suddenly high fever, sweating, screaming, convulsions, coma, breathing difficulties, will panic, do not know how to deal with. The emergence of these symptoms is due to the lack of oxygen to cover the heat caused by the medical called “cover the heat syndrome”, also known as “stuffy heat syndrome”. This syndrome, which can involve multiple organs and systems, is a pediatric emergency and must be treated urgently. Cooling down and reducing the fever is the basic measure of treatment. Parents should first remove the cause of the fever, evacuate the hot environment, let the child breathe fresh air as soon as possible, and send the child to the hospital as soon as possible for treatment. The child’s temperature is very high and should be cooled down quickly. It is best to use physical cooling methods, such as the use of ice pads, warm water baths, etc. Do not use sweating medicine, so as not to sweat too much to aggravate the defecation. Rapid oxygenation is a must for treatment. Oxygen administration can increase the partial pressure of blood oxygen, blood oxygen saturation and blood oxygen content, and improve the hypoxic symptoms and respiratory status of the body. If cerebral edema is present, hyperbaric oxygen therapy should be taken. Fluid therapy is also an important measure in rescue treatment. As the child’s high fever and sweating cause a large amount of fluid loss, which can cause dehydration and acidosis, so it is necessary to actively replenish water and correct acidosis. Intravenous rehydration should be used to supplement glucose, saline and sodium bicarbonate. In addition to the above therapeutic measures, anticonvulsants, such as valium, luminal, chloral hydrate, etc., should be applied to children with convulsions. On the basis of comprehensive treatment, drugs such as energy combining agent and vitamin C are given to promote the recovery of brain function. At the same time, attention should be paid to strengthening systemic supportive therapy and ensuring the supply of nutrition. Parents of every child should be reminded not to wrap their children too tightly or too thickly, as over-warming and lack of fresh air can cause the child to develop muffled fever syndrome. This condition has a high morbidity and mortality rate, and even if the child survives, sequelae are likely to occur. At the same time also reminds the medical personnel, should improve the understanding of this disease, timely diagnosis and treatment is the key to reduce the morbidity and mortality rate, reduce the occurrence of sequelae.