Chicken pox is caused by the varicella zoster virus.
The incubation period is as long as 21 days.
Do not give a child, who has chicken pox, aspirin as it may cause Reye's Syndrome.
Acetaminophen may help control fever, headache or muscle pain.
If the patient has a temperature above 39.4° C, call a doctor. .
Baking soda baths can help relieve itching sensations.