No, there is no cure for chickenpox. Chickenpox is an extremely common
childhood ailment similar to measles and mumps which is impossible to avoid
under normal circumstances. It is estimated that 90% of the
world population have had chickenpox during childhood.

Chickenpox is very common. About 90% of the world's population have
had chickenpox in childhood.

Chickenpox is caused by the virus Varicella Herpes Zoster (VZV) which
spreads via the humidity in the air during the 7 to 23 day long
incubation period of chickenpox which has no symptoms. This is the
reason chickenpox is so common, you don't even need skin contact
to catch it and there are no symptoms of the chickenpox incubation
period.

Yes, adults can catch chickenpox, but only if they didn't have
chickenpox in childhood and didn't have the chickenpox vaccine.

Chickenpox in adults can have serious, sometimes lethal,
complications. Pneumonia and encephalitis (infection of the brain)
are the main risks. Particularly at risk are smokers, those with
lung disease and pregnant women. Infection in the first half of
pregnancy can affect the baby and produce severe abnormalities.
Hospitalization of adults with chickenpox is quite normal. Adults
are more than 20 times more likely than children to die from this
disease.