Diarrhea/Nagtatae

Hello po, nung isang araw po nagsimula diarrhea ni baby una parang slimy poops hanggang maging watery na poops nya, pinacheck namin oresol or vivalyte 50-100ml and zinc nareseta. 5months baby ko. How to properly take oral rehydration po ba???? Ok lang ba mag milk before or after ors?? Ty. Picture is now po