Roseola is a common viral infection that usually affects babies and toddlers. It typically causes a fever and a spotty rash for a few days.
While the rash may look alarming, roseola tends to be mild and you can normally look after your child at home. They'll usually recover within a week.
Roseola can also affect older children and adults, but this is uncommon because most children will have been infected by the time they start nursery and it's rare to get it more than once.
Roseola is also sometimes called "roseola infantum" or "sixth disease".
This page covers:
How to treat it
When to call your doctor
When to get emergency help
How to stop it spreading
Roseola doesn't always cause noticeable symptoms. If they do develop, they'll usually start a week or two after becoming infected.
At first, your child may have:
These symptoms typically last three to five days, at which point a rash often appears.
Some children also have fits (seizures) known as febrile seizures . These can be frightening, but are usually harmless.
The roseola rash usually appears once the fever has gone down.
It can be difficult to tell the rash apart from similar childhood infections, such as measles , rubella or scarlet fever .
You can usually look after your child at home until they're feeling better.
There's no specific treatment, but the following can help:
Don't give your child paracetamol and ibuprofen at the same time. If one doesn't work, you may want to try the other one later.
Never give aspirin to children under 16 unless advised to by a doctor.
Read more advice about treating a high temperature in children .
Most children recover within a week, so there's usually no need to see a doctor.
But call your doctor if:
Also speak to your doctor if you have a weakened immune system – for example, because you're having chemotherapy – and you've had contact with a child with roseola.
Call for an ambulance or go to your nearest accident and emergency (A&E) department immediately if your child:
Roseola doesn't usually cause any serious problems, but it's important to look out for these symptoms and get help if they occur.
Roseola is spread in a similar way to the common cold – through coughs and sneezes, and contaminated objects or surfaces.
It doesn't spread very easily and you don't need to keep your child away from nursery or school if they're feeling well enough to attend.
If they're unwell, keep them at home until they feel better, although there's no need to wait until the last spot disappears.
The following may help stop the infection spreading to others:
It's unclear exactly how long a child with roseola is contagious. They may be able to pass on the infection the whole time they're ill, including before the rash develops.
Important: Our website provides useful information but is not a substitute for medical advice. You should always seek the advice of your doctor when making decisions about your health.