Symptoms Fever, tiredness, headache and reduced appetite may occur before or with the rash. The rash often starts on the chest, back or face and spreads. New spots can appear for several days.
Contagious period A child is usually contagious from about 1 to 2 days before the rash until all lesions have crusted. Avoid contact with pregnant people, newborns and anyone with a weakened immune system.
Home care Keep fingernails short, use cool baths and loose clothing, and provide appropriate treatment for itching and fever as advised. Aspirin must not be given to children with chickenpox because of the risk of Reye syndrome. Ibuprofen should be used only after medical advice because of concerns about serious skin infections.
Complications Possible complications include bacterial infection of the skin, dehydration, pneumonia or neurological problems. Vaccinated children who develop breakthrough chickenpox often have a milder illness.
When to seek care Seek medical advice for breathing difficulty, severe headache, confusion, repeated vomiting, a very painful or spreading red skin area, dehydration, a weakened immune system or exposure during pregnancy.
Frequently Asked Questions
Can a vaccinated child still get chickenpox?
Yes, but breakthrough illness is often milder with fewer lesions.
When is chickenpox no longer contagious?
Usually when every blister has dried and crusted.
Can aspirin be used for fever?
No. Aspirin is avoided in children with chickenpox because of Reye syndrome.
Should the blisters be scratched?
No. Scratching increases the risk of scarring and bacterial infection.
This information is for education only and does not replace medical assessment or treatment by a qualified physician.