How many days does a toddler's fever rash last?

Written by Yan Xin Liang

Pediatrics

Updated on September 08, 2024

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Roseola infantum is a viral infectious disease, generally characterized by a fever that lasts about three days, followed by a rash. The rash typically appears after the fever subsides and gradually emerges, starting from the head and neck and spreading to the trunk and limbs, potentially affecting the entire body. The rash usually consists of congestive red maculopapular lesions, which may slowly fade after two to three days.

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Written by Yan Xin Liang

Pediatrics

55sec

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Can children with roseola eat eggs?

Exanthema subitum, also known as roseola, is an acute febrile developmental disease caused by human herpesvirus type 6 or 7. Typically, the acute phase begins with a sudden high fever, where the body temperature can reach 39°C or even exceed 40°C, lasting for about three to five days. After the fever subsides, a rash appears, generally lasting about two days. In cases without complications, the rash disappears after two days, and the condition is resolved. During the fever phase, it is recommended to have a light diet with easily digestible food included. Eggs are rich in protein and phospholipids, making them a nutritious food option that can be given to children in moderation. However, excessive consumption may increase the burden on the child's gastrointestinal function and hinder digestion.

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Written by Hu Qi Feng

Pediatrics

50sec

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How many times does a young child get a sudden rash?

Roseola infantum is caused by human herpesvirus types 6 and 7, often manifesting as fever and sudden high fever lasting three to five days. The symptoms and signs are mild, disproportionate to the high fever, with 5%-10% of cases experiencing convulsions. On the third to fifth day of the illness, when the fever suddenly subsides, a scattered rose-colored maculopapular rash appears either simultaneously or slightly later, quickly spreading to the neck and trunk, and resolving within one to two days. This condition occurs in 90% of children under the age of two, although it is occasionally seen in older children and adolescents. Most cases are sporadic, and infection usually results in long-lasting immunity. A second occurrence of the disease is rare.

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Written by Li Jiao Yan

Neonatology

59sec

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Can children with roseola be exposed to wind?

Roseola infantum is a common febrile rash disease in toddlers, primarily affecting infants under three years of age, with the general peak incidence at six to seven months. It is usually caused by a viral infection. During the period of roseola, the baby's immune system is weak. Exposure to drafts can lead to catching a cold and may coincide with other viral and bacterial infections, potentially causing discomfort such as coughing, nasal congestion, runny nose, vomiting, diarrhea, etc. Therefore, during the period of roseola, try to avoid taking the baby to crowded places or drafts, or going out in cold weather, and pay attention to caregiving. When their immunity is weak, avoid exposure to cold. Thus, it is best to keep the baby from being exposed to drafts during roseola.

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Written by Tong Peng

Pediatrics

52sec

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What to do with baby's sudden rash?

If a child develops sudden exanthema, parents need not be overly worried, as this condition is a rash-causing disease due to herpes virus infection and it can heal on its own. Often, the child may experience high fever for three to five days, during which physical cooling techniques and oral antipyretics can be used for symptomatic treatment. It is also appropriate to ensure the child drinks plenty of water and eats nutritious food. Once the fever symptoms alleviate, scattered rose-like rashes may appear on the child's face and trunk, which can fade on their own. During this period, symptoms of indigestion or itchy skin may occur, and taking calamine for itch relief and oral probiotics can help alleviate symptoms of digestive upset. (The use of medications should be conducted under the guidance of a physician.)

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Written by Hu Qi Feng

Pediatrics

48sec

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What are the symptoms of roseola infantum?

Roseola infantum commonly occurs in infants under one year old, caused by human herpesvirus type 6 infection. It typically presents with very high fever, with temperatures often reaching 39-40 degrees Celsius, and throat congestion. However, the patient generally remains in good condition without obvious symptoms of infection or poisoning. Blood tests are generally normal, indicating a viral infection. Symptomatic treatment is given, and about three to five days later, the temperature abruptly drops. One to two days after the temperature returns to normal, a red, rose-like rash appears, primarily on the head, face, and trunk, consistent with the clinical manifestations of rash following the resolution of the fever.