Oh, I would definitely take my child to the doctor if it was necessary; to stay away is absolutely ridiculous and if that was the case, doctor's offices would be for well visits only! This time however, I'm confident it will run its course and there is nothing that can be done.
As for the person who exposed your child to chicken pox...the incubation period is up to, I believe 10 days, at which time the child harboring the illness is contagious. Anyone around that child is now exposed, and the child has not one single symptom yet. It's not about knowing how to take care of the child who has already broken out...it's just about being at the wrong place at the wrong time. There are some moms out there I know who would rather their child catch it and deal with it naturally than deal with all these extra vaccines. It's really not fair to blame someone for spreading an illness when they have no idea they even have it.