What vitamins should i give to my 2 months old daughter!rhe is having a aough more than 1 month.she took an antibiotic 2 wks.no breastfd.

Not much: If she is using formula exclusively and you have a good brand and using a good water source you should not have to give her any additional vitamins. The better quality ones now have dha/epa and often probiotics. The persistent cough at that young age needs to be investigated in more detail and if not infectious in nature reflux from the stomach should be considered.