Hi...., Chickenpox tends to be more severe in adults than children, and adults have a higher risk of developing complications.... antiviral medicine are useful only if the treatment is started early in the course of the illness.... There is no specific treatment for chickenpox, consider paracetamol to relieve fever, and calamine lotion and some anti itch gels to ease the itching....And the disease is highly contagious, its better to stay away from family members..