Need to test if DD is allergic to cow's milk before we give her any formula (my niece is toxically allergic and had a horrific reation first time she was given formula).
If we put a bit of formula on her lip, how long should we wait before it seems okay to go ahead and feed her??
Also, how much should we give her? She's about 11lbs and 8 weeks old. Hoping this is just a last feed tonight, to give me the chance to express (long story - sore nipples blah blah) so hoping it won't be the start of formula feeding.
Advice????