Been out with a friend today who has two DD's slightly older than my DD (4).
Not even sure how it came about but she mentioned giving them their worming tablets before going back to school.
I was
!! I've honestly never heard of this before, apparently she does it every 6 months.
I couldn't wait to get home & google it but tbh I still didn't really get an answer from there, is this something you're meant to do??