Chicken pox or what ..

Sy had spots all over his face and upper body and we thought he was having chicken pox. Prior to that, he'd had fever for four days. So we went buy calamine lotion and semambu soap and also to see a doctor which confirmed it was chicken pox. But yesterday, the spots dissapeared. I wonder ... was it because we bathed him using the semambu soap? I'm sort of relief, because he's only 6 months old. But I'm quite worried too. A, when she was about one year old, also had spots which dissapeared for about one week to only return back as real chicken pox. I wonder what was that ... chicken pox, or some allergic reaction.
Today, he's back to himself, smiling, baby-talking and busy touching things.