Hello dear
Warm welcome to Health care magic family .
I have evaluated your concern in depth .
@ Stomach ache is due to
gastritis caused by
amoxicillin and
motrin .
@ Recommendations for his fast recovery
$ Addition of
antacid as
ranitidine (150)mg along with current medicines
$ Soft , light diet with preferable lemon juice , coconut water , rice ,
legumes , pulses , organic citrus fruits , butter milk etc.
$ Avoid all oily , non veg , spicy , beverages
Hope this will help you .
Feel free to ask any future health related questions anytime .
Thanks for evaluating my answer thoroughly .
Regards dear .