What shuld be given to.8mth old baby who have diarrhea? Milk will make it worse right?

Breast milk. A large part of human milk cannot be digested by babies and seems to have a purpose quite different from infant nutrition — that of influencing the composition of the bacteria in the infant’s gut. This bacteria coats the lining of the infant’s intestine, protecting it from noxious bacteria. Breast milk may be best. It does contain lactose so if it makes it worse try a lactose free formula.