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Mar 6, 2024 · A rash with small, flat, or raised red bumps on the skin and no other signs of an allergic reaction rarely means a true allergy. These rashes do not require treatment and will go away independently, typically in less than a week. Continuing the entire course of amoxicillin in these cases rather than switching to a different medicine is recommended.
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If your child is exposed to someone with roseola and becomes infected with the virus, it will likely take 1 to 2 weeks for signs and symptoms of infection to appear. Or they may not appear at all. It's possible to become infected with roseola but not show any sign of it.
Roseola symptoms might include:
•Fever. Roseola often starts with a high fever — often higher than 103 F (39.4 C). It starts suddenly and lasts 3 to 5 days. Some children also may have a sore throat, runny nose or cough along with or before the fever. Your child may also develop swollen lymph nodes in the neck.
•Rash. After the fever goes away, a rash often appears. A roseola rash is many small spots or patches. These spots tend to be flat.
Seek immediate medical care
Your child could have a convulsion (febrile seizure) if the fever becomes high or spikes quickly. If your child has an unexplained seizure, seek medical care immediately.
Call your child's health care provider
Call your child's health care provider if:
Call your health care provider
Contact your health care provider if anyone in the household has a problem with their immune system and comes in contact with someone who has roseola. They may need monitoring for a possible infection that could be more severe than it is for someone with a strong immune system. Request an appointment
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Roseola is caused by a virus, usually human herpes virus 6 or sometimes human herpes virus 7. It is spread by contact with an infected person's saliva, such as when sharing a cup, or through the air, such as when a person with roseola coughs or sneezes. It can take about 9 to 10 days for symptoms to develop after exposure to an infected person.
Roseola is no longer contagious after the fever has been gone for 24 hours.
The risk of roseola is highest in older infants. It is most common between 6 and 15 months. Older infants are at greatest risk of acquiring roseola because they haven't had time yet to develop their own antibodies against many viruses. Newborns are protected by antibodies received from their mothers during pregnancy. But this immunity decreases wit...
Seizures in children
Occasionally a child with roseola experiences a seizure brought on by a sudden fever (febrile seizure). If this happens, your child might briefly lose consciousness, fall down, and have jerking arms and legs for several seconds to minutes. If your child has a seizure, seek emergency care. Although frightening, febrile seizures in otherwise healthy children tend to be short-lived and are rarely harmful.
Concerns for people with weak immune systems
Roseola is of greater concern in people with a weak immune system. You might have a weak immune system, for example, if you've recently had bone marrow transplant. People with a weak immune system have less resistance to viruses. They tend to develop more-severe roseola or complications such as pneumonia or encephalitis. Encephalitis is a potentially life-threatening inflammation of the brain.
There is no vaccine to prevent roseola. You can protect others by keeping home a child with fever until the fever has been gone for 24 hours. Then, even if a roseola rash is present the disease isn't contagious.
Most people have antibodies to roseola by the time they're of school age, making them immune to a second infection. Even so, if one household member gets the virus, make sure that all family members wash their hands often to prevent spread of the virus to anyone who isn't immune.
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By Mayo Clinic Staff
Jun 29, 2022
1.AAP Committee on Infectious Diseases. Recommendations for prevention and control of influenza in children, 2017-2018. Pediatrics. 2017; doi:10.1542/peds.2017-2550.
Morbilliform drug eruption is the most common form of drug eruption. Many drugs can trigger this allergic reaction, but antibiotics are the most common group. The eruption may resemble exanthems caused by viral and bacterial infections. A morbilliform skin rash in an adult is usually due to a drug. In a child, it is more likely to be viral in ...
Feb 9, 2023 · Symptoms of roseola. Roseola usually affects toddlers and babies under 2 years old. They may also have or show: general discomfort. irritability. an unwillingness to eat. diarrhea. a cough ...
How are cutaneous drug reactions classified? Rashes due to antibiotics are most often morbilliform (exanthematous) or urticarial. It usually takes 7–10 days to become allergic to a drug, so if a reaction is rapid, it is either non-immunological, or it is due to a previous encounter with the same drug or a chemically similar substance.
Apr 4, 2022 · If you’re taking an antibiotic (or any other new medication), keep an eye out for these signs: Blistered or peeling skin. Blurry vision or other vision problems. Dizziness. Hives. Red, itchy, flaky or swollen skin. Severe nausea or vomiting. Severe swelling or itching. Swelling of the face, lips or tongue.
Jun 12, 2023 · A key feature of a roseola rash is that, unlike some other rashes, it only appears after your child’s fever is gone. Roseola vs. measles rash. Both roseola and measles can cause a rash. Here are some differences between the two: Color of the spots. A roseola rash is often pink-red in color, while a measles rash is red or red-brown.
