What should I do if my newborn baby has a fever? In infancy, babies have weak immune systems and are prone to colds and fevers. The arrival of the baby makes parents excited, and a little sickness will certainly torment the parents' hearts. So what should I do if the baby has a fever? What are the causes of fever in babies? Let's take a look at them one by one.

Reasons for baby fever
A fever is not a disease, it's just a warning sign that something is wrong with the body, which may or may not be a contributing factor. There are many causes of fever in babies, which can be roughly divided into the following three categories.
The first type is that the child's body temperature is affected by the external environment, such as wearing too much clothes in hot weather, drinking too little water, or lack of air circulation in the room.
The second is caused by illness, colds, bronchitis, sore throat, or other illnesses.
The third is prophylactic shots, which include reactions to measles, cholera, diphtheria, whooping cough, tetanus, and more.
Babies often have fevers because their central thermoregulatory system is immature, and because their bodies are less resistant, they are more susceptible to infection.
Fever can be caused by many diseases, such as viral and bacterial infections, cancer, autoimmune diseases, dehydration, etc. These can only be confirmed after various tests and require appropriate treatment. Many fevers have non-pathological causes.

What to do if the baby has a fever
What should I do if my baby has a fever? Before taking the baby to see a doctor, what can parents do to deal with the baby's fever at home? As a parent, you should know that the correct way to reduce a fever is:
1. Keep the air circulation in the home: If there is an air conditioner in the home, keep the room temperature between 25~27℃. You can put your baby in an air-conditioned room or blow it with a fan to let the body temperature drop slowly and make the baby feel more comfortable. But if your baby's extremities are cold and shaking violently, it means your baby needs warmth, so extra blankets are needed.
2. Wear too much clothes: If the baby's limbs, hands and feet are hot, and the whole body is sweating, it means that it needs to dissipate heat, so you can wear less clothes.
3. Warm water bath: Untie the baby's clothes and rub the whole body up and down with a warm water towel to dilate the blood vessels of the baby's skin. Also, body heat is absorbed as water vapor evaporates from the body surface.
4. Sleep on an ice pillow: It helps to dissipate heat, but it is not recommended for smaller babies. Because the baby is not easy to turn over, the ice pillow can easily cause local overcooling or hypothermia. Antipyretic creams can also be used. When the water in the gel-like substance of the antipyretic paste evaporates, the heat can be taken away without excessive cooling.
5. Drink plenty of water: Help sweat and prevent dehydration. Water has the effect of regulating the temperature, which can reduce the body temperature and replenish the water loss in the baby's body.
6. Use of antipyretics: When the central body temperature of infants and young children exceeds 38.5 ℃, an appropriate amount of antipyretic liquid or suppository can be used.
Finally, parents should pay attention to whether the baby has a fever, take the child as much as possible to find out the cause of the fever, and see if the baby has a cold or a virus infection. Forced cooling is unscientific.

Symptoms of a baby's fever
Babies usually have the following symptoms.
Elevated body temperature. Babies with fever first dilate the blood vessels of the skin, and then start to sweat, and sweat beads first appear on the forehead, temples on both sides, and later on the chest and inner thighs. This can lead to dehydration and difficulty breathing if not paid attention to hydration.
Babies with fever have elevated body temperature, are prone to irritability, cry, flushed skin all over the body, and reduce urine output.
If the body temperature is raised due to various infections, in addition to fever, the baby may also have symptoms of infection and poisoning, such as unresponsiveness, reduced milk intake, low crying, and gray complexion. If the infection is caused by pneumonia, there will be symptoms such as shortness of breath, cyanosis, choking, and foaming at the mouth; if it is an infection of the umbilicus, there will be signs such as omphalitis. The signs and symptoms may vary depending on the circumstances of the primary infection.

Can the baby take medicine for fever?
Babies can take medicine if they have a fever. If they are serious, they should take medicine or injections, otherwise the fever will burn the baby.
However, it should be noted that the resistance and antibodies in the baby's body are weaker than that of the adult, so it may be a mild side effect in the adult, and the baby may have toxic or more serious side effects, which will seriously affect the baby's health.
When the baby has a fever, you should feed the baby more water and add water; the room is ventilated and too dry, you can put a humidifier or a basin of water in the room to maintain a certain humidity; often pay attention to the baby's repeated fever and clothes for the baby Not too stuffy; breastfed babies should eat more light and less greasy food.
If the above measures are not effective, you can take oral antipyretics. However, babies under 6 months should use physical cooling as much as possible. If parents feel that the baby's condition is serious, they can take the baby to the hospital and take medicine under the doctor's advice!

What checks should be done for babies with fever
When the baby's armpit temperature exceeds 37.2 ℃ or the anus temperature exceeds 37.8 ℃, it is considered to have a fever. The cause of the fever should be further clarified, and various infectious causes should be excluded. But first of all, the body temperature should be accurately measured, and the temperature can be seen clearly to confirm the degree of the baby's fever, so as to prescribe the right medicine.
Common sites for taking your baby's temperature are the anus, the skin of the abdomen, and the underarms. However, in clinical practice, the armpit temperature is usually used as the standard for measuring the baby's body temperature.
Those caused by non-infectious factors such as high ambient temperature or improper feeding often have dehydration, hypernatremia, metabolic acidosis, etc. These serious cases should be checked by chest X-ray, B-ultrasound, electrocardiogram, etc., except for lung infection and external nervous system lesions. If necessary, EEG, CT and other examinations should be done.