hi, i am 36 and i have chicken pox, on my 5th day now. my blisters started to crust. one huge on my forehead is swallen and full of gray-ish liquid and it is really big- kind of scary looking - is it normal? My other question, i'm going to caribbean island in 17 days, what would my condition be by that time, scaring/crusting wise and can I be on the sun at that point?