I thought to only breastfed my 4 month daughter but now I feel that there is not enough breastmilk for her, is it good to give her formula milk or cow milk now.

A. dear mum , why u think milk is not sufficient baby is passing urine 6 to 8 times in 24 hrs is active alert n gaining adequate wt then feeding is good. introducing top milk or formula can reduce breastmilkk, risk infection