What virus causes chickenpox?
Varicella-Zoster virus, a member of the herpesvirus family
What is the typical progression of the chickenpox rash?
Spots (red bumps) → fluid-filled blisters → scab formation; new spots can appear as others blister or scab
What is the general management of chickenpox in healthy children?
Supportive care only: oral fluids, paracetamol for fever (avoid ibuprofen), topical lotions (calamine or aqueous creams), and antihistamines for pruritus
What medication should be avoided in chickenpox and why?
Ibuprofen/NSAIDs—due to increased risk of serious skin complications (necrotising fasciitis)
How long should a child with chickenpox remain off school or nursery?
Until all spots have crusted over, usually 5 days after onset
What are key signs that require urgent medical attention in chickenpox?
Difficulty breathing, severe headache, drowsiness, seizures, persistent fever >5 days or returning after settling, dehydration, or signs of skin infection (hot, red, painful skin)