Chicken pox, medically known as varicella, is a highly contagious disease affecting mostly children and sometimes adults also. The rash appears on the body 2 days after the person gets infected. The rash forms into blisters, which burst and then scab over. Therefore, it is uncommon to have more than one bout of chickenpox in your lifetime.
The standard treatment for chicken pox is to put some calamine lotion on the spots. For my kids, this did seem to help pretty immediately. The downside is that the effects wore off pretty quickly, so within ten minutes they were scratching again. This is good for a quick fix, but not lasting effects. Also, be prepared for everything to be covered in pink cream.
Some children feel quite unwell for a few days. Others appear only mildly ill. Most are much better within a week. The blisters dry up and scab.
Application of Vitamin E oil helps and has a healing effect. The scars fade away very quickly.