now giving formula milk only.. I have flat nipple ..I tried lot baby not latch and reduce the weight. as well one wart in breast ..I removed that's also more pain ..so started formula... is the safe for baby

A. Formula is safe there is no problem you can infect express your breastfeed with a breast pump that really helps in expressing the feet you can also use a nipple sheet that gives good comfort to the child to take feed on Flat nipples also