I would say load up on vitamins. My 14 month old is currently taking immuped vitamin c and biogaia probiotics
You can try probiotics, dha. Continue breastfeeding if you can, it helps build up immune system.
immunity balm and chest balms from sunshinebabyorganics probiotics biogaia for healthy gut
Echinacea helps them to recover a little faster!
i would seek professional help as still young
🙏💕