Advise for 1st time Mum - Baby diarehhea

Hi, My baby is 9 months old and currently having diarehhea for about 3 days. Have consulted Doctor and given medication. However, diarehhea has gotten abit better but still have diarehhea about 2 to 3 times a day. Baby refuses to drink milk, eat cereal and porridge. Have tried all way to feed him, yet he doesnt drink milk. he eats about 2 to 3 spoon of cereal and stops. #firstbaby #pleasehelp #advicepls