appear
begin
blister
body
care
cartoon
check
chickenpox
child
childhood
crust
crusting
defect
describe
diagnose
diagram
disease
doctor
drying
examining
fever
health
illness
illustration
immune
infection
information
kid
medical
neck
painful
patient
primary
problems
red
reduce
show
sick
sores
spot
spread
statement
system
teenagers
treatment
up
vaccine
varicella
virus