We all (including my husband and me) had the chicken pox when our son was 4 and our daughter was 10 months old. We had a very easy time of it...they barely even itched. We did all get an upset stomach a day or so before the first pox showed up, but that was the worst of the whole thing. The baby did just fine...I kept her skin well moisturized and there's not a mark on her. She was maybe a bit fussy at times, but no more than with teething.
Personally, I'm very relieved that my daughter had the chicken pox...she has lifelong immunity, unlike that offered by the vaccination, which will require lifelong boosters or leave women of childbearing years unprotected.
Chicken pox were considered a normal childhood illness until a vaccine became available, and then suddenly it became a deadly killer and everyone's in a tizzy about the thought of catching it. Mighty good marketing there!
M.