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What is viral infection in children?

Question
Hello Doctor, My baby is 3 years old, a few days ago suddenly had a fever, swollen glands in her neck, anorexia, fussiness. I went to the doctor, and the doctor concluded that the fever was viral and gave me fever-reducing medicine. However, after lowering the baby's fever, for 2 days now, she has a rash, itching all over her body, sometimes with small petechiae on her arms and thighs. I don't know if it's due to the wrong use of antipyretic drugs or if the baby is infected with typhus because during a common fever, the immune system is weak, so he gets more diseases? Is the baby infected with the virus? I don't dare let him scratch but he is very upset. Can you advise me if this symptom is dangerous, Doctor? Should I take my child to the doctor again? Hope the doctor will reply soon!
Tran Thi Hue (Hanoi)

Answer
Viral fever, also known as viral fever, is often caused by many viruses, the most common being respiratory viruses. The disease is easily spread from one person to another through the respiratory tract, digestive tract, children have weak resistance, so they are more susceptible to the disease. Therefore, when sick, it is necessary to avoid contact to avoid spreading the disease to others around.
Symptoms are usually high fever, there may be symptoms of upper respiratory tract inflammation (red throat, cough, runny nose, ..), body aches and pains, possible digestive disorders, swollen lymph nodes, Tiny rash 2-3 days after fever, or red eyes, conjunctivitis.... the disease usually goes away after 5-7 days.
With the symptoms of your child as you describe, your child may have a viral fever, you need to strengthen your child's resistance by giving them enough nutrients, vitamin supplements from fruits, for them rest, personal hygiene and surroundings. If the child has a fever ≥ 38.5 degrees, it is necessary to give the child paracetamol at a dose of 10-15mg/kg/time every 4-6 hours, drink plenty of water and add oresol to prevent dehydration.
If the child's condition does not improve, the child has a lot of rash, the child has itching and scratching, causing infection, the child needs to go to the medical facility for re-examination.
BSCK I Bui Thi Ha - Pediatrician - Neonatologist - Department of Pediatrics - Neonatology, Vinmec Ha Long General Hospital

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