Baby girl genital hygiene - how should i clean her private parts?

Dear ladies,

I have a 3 month old daughter. Lately there has been a foul smell coming from her private part - I don't think its the usual urine smell. Also creamish discharge (I have heard discharge is normal). Would any of you all be able to advise on this. I wash her private parts from front to back always. Not sure if this is an yeast infection.