My 2.5 yr old son started creche this year. he's always getting colds, flu, fever, throat inflammation, terrible rash & a running nose. which multivitamin / immune booster / combination can i give him daily to help him cope?

When children are around other children for long periods of time frequent colds are common. There is no vitamin or immune booster that can help. Frequent hand washing and using a mask could help but that isn't possible with a 2.5 yr old.

His response of getting all these new illnesses as he is now exposed to new viruses/illness is quite normal and actually a good thing. You want him to get these things gs whole he us young and has a robust immune system to respond to these various germs. Don't try and stop that from happening. A good varied diet is your best immune booster. but if concerned, just a general kid's vitamin is fine.