Chicken pox is a common viral xanthan that historically used to happen to all children. These days we've vaccinated against it, so we see the incidence of actual active disease to be significantly decreasing. Chicken pox is a week-long, viral illness. Usually starts with 1-2 days of fever, stomach cramps, headache, during which time you're contagious, even before the outbreak of the rash. And somewhere around day 2, you develop a rash. They're small little pustules or blisters that occur on the face or trunk and then spread to the extremities. The rash lasts about a week, and as long as you have the rash, as long as they're still blistering, you're contagious. The complications of chicken pox are rare. Things like encephalitis and major complications of chicken pox almost never happen. And now that we have the varicella vaccine and fewer and fewer people are getting the disease, we really almost never see it happen. I would say the biggest and most common complication we have from chicken pox is that children find the rash to be itchy. They like to scratch it. And the moment you scratch a chicken pox lesion, it becomes secondarily infected with bacteria. And even if the infection is super mild, it will result in a scar. So we've all seen kids, or adults for that matter, that have small little pockmarks on their face. And that's often because of an earlier chicken pox infection.