HI! I suspect that the vomiting is a combination of the carnation formula mixed with the runny nose (mucous), and possibly some tummy upset from the new food and formula. Here are my suggestions:
1) keep watching her tonight. She should be fine.
2) If she continues to vomit, does not wet a diaper in 4-6 hours or her mouth seems dry, she should be seen for dehydration.
3) In the future, be sure not to introduce more than one new item to her diet every three days....this makes it easier to determine when she has a reaction to a new food.
4) You may want to introduce the formula by either 1- mixing it a little weaker than 50/50 for the first few times, or 2-even better, mix it 50/50 with a little breast milk....tapering the breastmilk until it is all formula (prepared 50/50).
5) There is always a chance that she is sensitive to the lactose or the milk, in which case a soy formula may be appropriate. I recommend getting your pediatrician recommendation before switching formulas.....as frequent formula changes can cause intestinal distress, making it hard to evaluate what is causing the problems.
6) I would not give her any more of the formula until tomorrow, when you can see that she is no longer vomiting.....offering breastmilk, water or pedialyte instead.
let me know if you need more information! Donna RN
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