How many days does the rash usually subside in young children with sudden onset?

Written by Yan Xin Liang

Pediatrics

Updated on September 19, 2024

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How many days does it take for infantile roseola to fade?

Typically, infants with roseola may experience a fever for three to five days, followed by the appearance of the rash, which usually lasts about three days. After the rash fully emerges, it will gradually fade away.

Therefore, the rash from infantile roseola might appear as red, rose-like rashes, spreading across various parts of the body. It usually starts to subside slowly after 2 to 3 days, leaving no marks or skin scars. Unlike measles, where the skin can feel rough, pitted, or flaky after the rash subsides, the skin surface after recovering from roseola is very smooth, leaving no traces.

Other Voices

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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

1min 3sec

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What should I do about baby rash?

Roseola infantum, also known as baby rose rash, is an acute contagious disease in children caused by viral infection. The characteristics of the disease include a sudden onset, with an initial fever lasting 3 to 5 days, followed by a rash after the fever subsides, usually resolving on its own. Roseola infantum is a self-limiting disease with a duration of about one week. Treatment does not shorten the recovery time but can help alleviate uncomfortable symptoms. Treatment measures include: 1. Rest and hydration – Encourage the child to rest and drink plenty of fluids. If the child is very uncomfortable or refuses to drink, hospital treatment may be necessary. 2. Fever management – If the child is very uncomfortable due to high fever, fever-reducing medication can be taken under a doctor's guidance, according to the child's weight.

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Written by Yao Li Qin

Pediatrics

1min 20sec

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Do infants with sudden rash need to take medicine?

Childhood rash illness is a common pediatric acute fever caused by herpes simplex virus types 6 and 7, characterized by a high fever lasting three to four days, followed by the appearance of a rash after the fever subsides. The treatment mainly involves symptomatic management. When a child's body temperature exceeds 38.5°C, antipyretic medications such as acetaminophen and ibuprofen suspension can be administered. It is also important to ensure the child stays well-hydrated. Before the rash appears, it is not certain that it will occur. For most children who have been confirmed through a blood test to have a viral infection, antiviral medications might sometimes be administered. However, these medications ultimately do not shorten the duration of the illness. Once the child has been feverish for three days and the rash appears, no further medication is typically necessary; just ensure the child drinks plenty of fluids. The rash usually spreads within about two days and then quickly fades. (Please administer medication under the guidance of a professional physician.)

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Written by Li Jiao Yan

Neonatology

1min 23sec

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What to do with infantile sudden rash

Infantile roseola is a common febrile rash disease in infants and young children, primarily caused by viral infections. The main typical symptoms are high fever, usually around 40 degrees Celsius, followed by a fever lasting three to five days. When the fever subsides, a rash appears simultaneously or afterwards, persisting for 2-3 days before gradually fading. Some children may also experience vomiting, diarrhea, or convulsions during high fever. Therefore, the treatment for infantile roseola is generally symptomatic. During high fever, physical cooling is applied, and appropriate antipyretics are used to prevent febrile convulsions. It is important to ensure adequate hydration and provide easily digestible food. Appropriate heat-clearing and detoxifying traditional Chinese medicines or patent medicines can also be given. If convulsions occur, it is urgent to seek medical attention, and doctors can administer suitable sedatives and antispasmodic medications based on the child's condition. Other symptoms, like vomiting and diarrhea, should be treated with appropriate antidiarrheals or digestive aids as needed, to help alleviate discomfort in the child.

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Written by Li Jiao Yan

Neonatology

47sec

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Process of fever reduction for children with roseola

Infantile roseola, also known as exanthema subitum, is a common acute febrile rash illness in infants and young children. It is characterized by high fever in children under three years old lasting for 3-5 days, followed by a sudden drop in body temperature. Simultaneously, rose-pink maculopapular rashes appear. One distinguishing feature of the fever associated with this illness is that after three to five days of high fever, body temperature generally spikes, then suddenly drops. Typically, within 24 hours, the temperature returns to normal. After the fever subsides or as the body temperature drops, rashes begin to appear on the skin.