My daughter had chicken pox at the tender age of 3 months, poor thing! She did very well. We only stressed dosed for the first couple of days during the fever. There is medicine you can get that helps the case be a more mild case if it’s started within 24 hours of onset. I wish we had had it because her case was very severe. Her entire body was covered but most on her head. It was no fun but she did very well. Julia