I caught chicken pox when I was 13 years old. I was covered in them head to toe, literally. They were in my hair, armpits, and the backs of my knees. I even had them in my unmentionable areas and the back of my throat. On top of that, if a child contracts chicken pox around puberty it can seriously damage their reproductive capacity. Anyway, it was possibly the worst week of my life. The day that it finally didn't hurt to drink, I was beyond happy. That being said, it was still another 2 weeks before the sores had cleared up and I was comfortable walking in public. Nightmarish stuff people.