WTF is gastric inflamation?
I had to find out.
It's also called gastritis, which i know is not very pleasant.
Years ago a doctor told me is was basically lots of little ulcers, but there is a difference between inflamation and ulcers, although inflammation would just about always be present when there are ulcers.
He needs to eat yogurt.
They will probably give him antibiotics so he needs to eat lots of yogurt, or take pro-biotics.