hi
After going through your case this is mostly a viral
diarrhoea. This diarrhoea doesn't need any specific medication but need supportive management.
Give your baby antacid like
lansoprazole and anti-vomiting medicine like ondensetron according to his weight. After half an hour give him something to drink like plain water or ORS water. if he doesn't vomit then good but if he vomits persistently then please
consult a pediatrician.
Give him 10 ml per kg of ORS after every
loose motion. He may also need zinc suppliments, probiotics etc.
Watch for following -
1] Large watery loose motions with mucus or blood in it.
2] Persistent vomiting.
3] Not passing urine adequately. [ this could be sign of dehydration]
4] Not taking orally well.
5] drowsy, excessive sleepiness.
6] excessive crying due to
abdominal pain.
7] high grade fever.
Give him plenty of oral fluids and adequate nutrition.
hope this helps.