Has anyone used these for their newborn? I was using smaller drops but I couldn't tell if my baby was getting them or not. So I have been advised to use this product instead but my Dr said put the full 1 ml into the babies mouth daily, however the instructions say put the 1 ml on the nipple for baby to suck which would drop the amount they absorb compared to squeezing directly into their mouth as advised by my Dr - can anyone advise ?