Hi,
some of the
scars after
chicken pox are deep involving
dermis, which normally does not go spontaneously, if the scars over the face are pretty big and deep you can undergo radioablation or microdermal abrations, which are done at few cosmetic or dermatology clinic like KAYA clinic,
consult dermatologist with fellowship in cosmetic surgery, cost may vary from 50000-60000
good luck