My DS aged 2 had chicken pox recently or chichen pops as he called them, anyway obviously was covering him with calamine including on his willy wonka and hollyhocks which were also covered in spots. In order to get his nappy back on asap I would (without thinking) gently blow over the area to dry the calamine luckily this did not have a reaction if you know what I mean but was mortified the next day when I forgot to do it and he said "mummy blow willy wonka"! Immediately stopped doing this as you can imagine and luckily he has not repeated it since!