Chickenpox is usually diagnosed by looking at the tell tale blisters and rash that chickenpox causes from and the sufferer’s medical history.

If there are blisters on the scalp, then this adds a lot of weight to the cause being chickenpox.

Blood tests, and tests of the pox blisters themselves, can confirm the diagnosis if there are any doubts.

If you suspect that you or your child has chickenpox, then contact your doctor as soon as possible to avoid the risk of developing complications or spreading the disease.