My little 15 wk old DD has go chicken pox.Covered in it on her front and face so far.B/F for 3/12 but now on formula.Thought this would be very young for c.pox?? HAs been confirmed by hospital.No idea where she has got it from.Not sure what to do with her.given some calpol and using calamine lotion.Needless to say not a happy bunny.ANy ideas?? Can I use piriton? Or is she too young