What is a Heat Rash?

Infant fever, also known as mules, occurs mostly in summer and is more common in children. It means that when the temperature around the baby's body is too high, a reddish rash appears on the skin. This rash will disappear soon after the baby's skin is cool. Fever rashes usually appear on the baby's face, neck, shoulders, elbows, groin, armpits, etc. When the temperature of the surrounding environment is too high, the skin regulates the body's temperature through sweat glands, but the infant's sweat glands are not yet mature enough to cause heat rash.

Basic Information

English name

infant heat rash

Visiting department

Dermatology; Pediatrics

Multiple groups

baby

Common locations

Face, neck, shoulders, elbows, groin, armpits

Common causes

Ambient temperature is too high; children's body temperature regulation function is immature

Common symptoms

When the baby finishes milking, hardening, and crying, a reddish rash appears on the skin, which disappears after the skin is cool. Itching, pain, burning, etc.

Causes of infantile heat rash

1. The ambient temperature is too high.

2. Immature temperature regulation in children

Children's central nervous system has relatively poor regulatory function, relatively large body surface area, and underdeveloped skin sweat glands. Therefore, the temperature regulation function is unstable, and the heat production and heat dissipation are prone to imbalance, so the body temperature is easy to fluctuate. The younger you are, the worse this regulation is. Especially for newborns, the skin fat is thin, the muscles are underdeveloped, and the ability to exercise is weak, so the temperature regulation function is more unstable.

Clinical manifestations of infantile fever

When the ambient temperature is too high, or when the baby finishes milking, hardening, and crying, a reddish rash appears on the baby's skin. This rash will disappear soon after the baby's skin is cool. Fever rashes often occur in sweaty areas such as the face, neck, shoulders, elbows, groin, and armpits of infants. Fever rashes are actually mild inflammation of sweat glands. At the beginning, the skin becomes red, and then needle-sized red pimples appear. Or papules, densely packed into tablets, some of which are purulent. It can cause itching and pain after a fever rash, and sometimes there can be hot and burning symptoms.

Baby fever rash check

Blood routine and C-reactive protein were examined to see if there was a secondary infection.

Differential diagnosis of infantile rash

It is not difficult to diagnose according to the characteristics of rash in children, but it needs to be distinguished from eczema.

1. different reasons

Eczema is caused by blocked sweat holes, which can cause eczema for many reasons. Common are: eating some fish, shrimp, eggs, beef and mutton, etc .; inhaling some pollen, such as dust mites, wool, etc .; focal infections such as tonsillitis; sunlight, hotness, and dryness in the living environment; chemical substances such as cosmetics , Soap, etc .; indigestion, gastric dysfunction, metabolism disorders, etc. Therefore, fever is a temporary disease and eczema is a chronic disease.

2. Occurrence season and population are different

Fever rash usually occurs in summer and is more common in children. Eczema may occur all year round. It often recurs or exacerbates in winter and has a tendency to exudate. It has a chronic course and is prone to recurrence.

3. Different locations

Eczema can occur in any part, mostly in the cheeks, forehead, eyebrow arch, and behind the ears.

4. Different symptoms

Eczema is an inflammatory skin disease of the epidermis and superficial dermis. At first, the skin becomes red with needle-sized red pimples. The manifestations are symmetrical, exudative, itchy, polymorphic, and recurrent. It is also an allergic inflammatory skin disease characterized by rash diversity, symmetrical distribution, repeated episodes of severe itching, and easy to evolve into chronic.

5. Prevention is different

To prevent eczema, choose a wide and comfortable cotton underwear without wool fabrics; the indoor temperature should not be too high; pay attention to observation, feed reasonably, and find allergens; carefully care; avoid various vaccines during eczema to prevent side effects;

Infant fever rash treatment

If the child develops a rash that does occur in a high ambient temperature, parents can do the following:

1. Untie the child's clothes and see if the child is really too stuffy.

2. Give the child a good bath with warm water. It is not necessary to wipe the child's water very dry, so that the child's skin can be cooled down smoothly by virtue of the evaporation process of the moisture left on the skin.

3. Be sure to wear cotton underwear for children, so it has better breathability and is easy to absorb sweat. Be sure to wear the right amount of clothes for your child. Don't think that the more you wear, the better.

4. Pay attention to the ventilation of the infant room, the temperature should not be too high.

5. If the child's fever does not disappear after 12 hours of the above treatment, the child should be taken to the hospital for treatment.

Infant fever rash prevention

The most important thing to prevent heat rash is to keep the skin clean and hygienic, take frequent baths, and change underwear. Put appropriate amount of toilet water in the bath to play the role of sterilization, anti-inflammatory and antipruritic. After bathing, rub some duster powder on multiple areas.