A baby with a fever has no other symptoms despite the fact that fever medicine does not work. As summer approaches, some children have fever symptoms that are not related to viruses or bacteria, but are suffering from “summer fever”. What is summer fever? Summer fever is a seasonal disease that is unique to infants and young children and is characterized by prolonged fever, excessive thirst, excessive urination, and little or no sweating. It is mostly seen in infants and toddlers under 3 years old, and is rare in those over 5 years old. It is common in the hot climate of southern China. The onset of the disease is concentrated in June to August, and is closely related to the rise in temperature and hot climate, the higher the temperature, the more disease, and with the rise in temperature and the disease aggravated. After the cool of autumn, the symptoms can mostly subside on their own. If there are no other comorbidities, the prognosis is good. What are the symptoms of summer fever in babies? The most obvious symptom of summer fever is that the fever rarely exceeds 40℃, and antipyretic drugs are not effective. The body temperature of these children will come down naturally when they go to a place with lower ambient temperature. The reason why they suffer from heat stroke is not related to germ infection, but mainly due to the high temperature in summer, and children, especially those under 3 years old, are not well developed in their own central thermoregulation function, and the heat production and heat dissipation functions are not balanced, plus the sweat glands are not functional enough, so they sweat less and do not dissipate heat easily. Therefore, in the hot weather of June, July and August, they are prone to suffer from summer fever, which can be cured by itself when the weather cools down. After a baby suffers from this disease this year, it usually recurs the following year, and some babies will continue for 2-4 years, but it will be reduced and the duration of the disease will be shorter. Although the disease can be cured without medicine, if not strengthened, it will not only affect the child’s growth and development, but also induce various complications, such as indigestion, respiratory and gastrointestinal infections, because of the baby’s reduced resistance to disease. It should be especially emphasized that if the baby’s temperature does not drop after 3 days, or if symptoms such as high fever convulsions appear, seek medical attention promptly. How to take care of baby’s heat stroke? 1, the use of air conditioning, ice, etc. to reduce the temperature of the room, room temperature is appropriate to maintain at 26 ~ 28 ℃; 2, the diet should be light, pay attention to nutrient supplementation, drink less plain water, available watermelon juice, honeysuckle dew and other tea, or cocoons, red dates, umeboshi decoction in lieu of tea; 3, high fever can be appropriate to use physical cooling. Commonly used warm water bath to help sweat to cool down. How to cool the baby? Wet a towel with warm water, wring it slightly dry, wipe the baby’s neck, arms, front chest, back, thighs and other parts, located in the elbow, armpits, neck of the large blood vessels should be wiped more than a few times, to slightly red as moderate. You can also put an ice pack or cold towel on the child’s forehead to reduce the oxygen consumption of the brain, to reduce body temperature and protect the brain. Do not use alcohol bath to cool down, because the baby’s skin is delicate, alcohol is easily absorbed into the body, will cause the baby irritability, crying.