What it is
It is contagious from 2 days before the spots appear until all the spots have crusted over, usually about 5 days after they start.
After chickenpox, the virus stays in the body and can come back later in life as shingles. A vaccine is available.
Common signs
- Red spots that turn into itchy, fluid-filled blisters
- Blisters that crust over into scabs
- Fever and feeling unwell
- Loss of appetite
How it is usually diagnosed
- Usually recognised by the rash
- A swab or blood test in pregnancy or for people at higher risk
Records worth keeping
Keeping these together makes each appointment easier, especially when you see a new doctor:
- The date of the illness (useful later, for example in pregnancy)
- Vaccination records
- Any antiviral treatment given
Questions to ask your doctor
- When can my child go back to nursery or school?
- I am pregnant and have been in contact with chickenpox; what should I do?
- Is the vaccine recommended for us?
When to get help right away
Call 112 or go to the nearest emergency department if you have:
- Difficulty breathing, a rash that bleeds or looks like bruising, a stiff neck, drowsiness, or skin around blisters that is red, hot and painful: call 112
This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.