Pain in upper abdomen

Hi,
For last 2 days im having severe pain in central upper abdomen just lower the rib.
May be gastic itis or some infection.
I planned to have some food that cure this infection,.

1.Manthakali keerai
2.Pomegranate juice
3.Dhal rice.
4.Banana + milk

But i confused whther i have butter milk or thick cud.
Soem freinds suggest me not to buttermilk while in infection it will not cure..instead take thick curd.
Pls suggest me some foods...