This has probably been done to death so apologies in advance.Toddlers friend came to visit at the weekend, friend has a hacking cough and runny snotty. My friend didn't warn me before coming. Now my toddler and baby have colds.Toddler was supposed to be starting play school but is too off form and too sick so no point starting when so sick and with something they haven't done before.Now the problem is, it's toddlers bday in a few days and having little party.Now should I ask my friend not to bring her kid?There will be a few other children and some small babies coming too.This kid is sick with a cough for 2 a few months but parent won't take DC to doctor because "it's just a cold". What do I do? I always tell people if my kids are sick and vice versa but this friend just doesn't get phased by it. Also my DF has cancer and I have to avoid bringing my kids to see him when they are I'll as a cold knocks him for 6, my friend knows this but still brings over sick child.What do I do going forward? I've asked friend if DC is sick and they say yea but just a small cold it's fine.What do I do!