My toddler start 3 hour playgroup in 2 weeks. Could mummies share what would help them boost their immunity?

If you are still breastfeeding, the antibodies in breastmilk helps to build their immunity. Maintaining proper hygiene helps as well as consuming probiotics. http://sg.theasianparent.com/how-to-strengthen-my-child%E2%80%99s-immunity/