When a child is sick, some rashes often appear on his skin, and these rashes are often accompanied by fever or other symptoms. The most common pathogen of colds is viruses, so these rashes are naturally often considered viral rash by parents.

When a child is sick, some rashes often appear on his skin, and these rashes are often accompanied by fever or other symptoms.

The causes of rash may come from infection (virus or bacteria), reaction to drugs, etc.

Because most of the causes of children's fever come from upper respiratory tract infections, which is the so-called cold. The most common pathogen of colds is viruses, so these rashes are naturally often considered viral rash by parents.

There are hundreds of viruses that cause colds. Although not every virus will cause viral rash, there are many viruses that cause viral rash. Except for the rash caused by a few viruses (entervirus, chickenpox virus, measles virus, virus that causes dengue fever) that are characterized by rashes, other viruses ( rhinovirus , adenovirus , para influenza virus , influenza virus, respiratory fusion virus) have similar appearance (although most of them are large or small red papules, they may also cause red plaque rash, that is, urticaria).

Sometimes it is really hard for doctors to tell what virus or cause it is just looking at the family members to provide photos. The main basis for judging the source of the rash is:

The appearance of the rash: erythema papules, blisters, pustules, and red floating patches with different shapes;

The distribution of the rash: the whole body or is limited to a specific area; the order of the

dispersion: from the trunk to the limbs, or spread from the face from the top to the bottom; the time when

appears: it appears on the 1st and 2nd days, or later; the order of the fever: it appears only when the fever subsides, but it is still accompanied by the fever;

and the time when the rash disappears, whether it is accompanied by itching, and other subsequent changes (skinning or nail loss occurs). At the same time, you should also pay attention to other symptoms other than the skin, such as the eyes (red eyes), mouth (ulcers, strawberry tongue), lymph nodes, and history of contact with the patient. Of course, the history of drugs, vaccination history and food allergy history are also important.

case1

5-year-old boy had a fever and had a red rash on his face and torso. Since there were no other cold symptoms and the fever subsided, the parents asked if it was a rose rash. In fact, rose rash only occurs in children of a specific age group, and it is often between 6 months and 2 years old. Rare rash rarely occurs over 3 years old. However, there are actually many parents who mistakenly believe that the rash will fall off after the fever will cause the rash to fall off.

checked the distribution and shape of the rash on the boy's throat and face, and told the parents that if the child has scarlet fever, antibiotics must be treated to reduce the chance of complicated rheumatic heart disease and acute glomerulonephritis .

case2

2-year-old girl, after gastroenteritis, she had intermittent red protrusions and plaques with different shapes, which did not disappear for a week or two. After examination, it was caused by food allergies. After adjusting her diet, the symptoms disappeared.

case3

Case4

4-month-old baby boy, after the fever lasted for two days, flat rashes of different sizes appeared on his body. After being brought to the hospital, it was found that in addition to the rash, the baby's eyes were congested but had no secretions, and his lips were bright red and dry. It was suspected that it was Kawasaki disease, and subsequent examinations and treatments such as cardiac ultrasound were arranged.

The above cases of outpatient rashes are mainly to remind parents that rashes co-existed with upper respiratory or gastrointestinal infections should not be considered as viral rashes. If it is a viral rash, it will disappear naturally in 1 to 2 days at least, and in 1 to 2 weeks at most, and there is no need for special treatment. But if it is not a viral rash, such as the above clinical cases, special treatment is needed. Therefore, when children at home have unexplained rashes, don’t rush to go online and be a doctor by yourself. It is best to take the child to the hospital and do relevant examinations before making a judgment!