This also happened to my baby when he was young.
Is the vomit projectile? Does it only recently happened?
When trying to burp, baby will vomit some milk, it is ok. My baby was also on Ridwind but it didn't work so we switched to Dentinox colic drops and that helped him burp better and vomit less milk.
But my baby also has mild reflux. Reflux is painful for babies so sometimes they might refuse milk because after they throw up, the "acid" from the stomach burns their throat a bit. The thrown up milk usually smells sourish.
For such cases, usually baby will outgrow it.
If it only recenlty happened, bring her to a doc to rule out illness. My baby was only diagnosed with reflux after doc saw this recurring for 3 mths.