What to give a two year old that feels sick.

Ma

My son is 2 years old . He threw up and woke up not feeling good. He threw up milk I gave him. He doesn’t have a fever. He looks tired and just kinda sick ish we have not been ANYWHERE for him to fall sick w/anything. So I feel like maybe it was something he ate yesterday. But, I’m wondering and asking what can my son eat or drink to help his tummy. He’s 2 Yrs + 8 months old.

Any remedies

List of foods etc.