Go to your bathroom and turn on the hot water, close the door and let the steam engulf her. Humidifiers too, baby vicks, and I think Zarbee's makes a cough med for 3 mths and up (I could be wrong on that age) but I used it and it worked wonders! I use Zarbee's to this day!

My pediatrician never gave my baby cough medicine (no matter how organic) but always recommended a humidifier. It always works

I would call and ask her doctor, but I know Zarbees has an organic cough medicine that’s pretty good. I’m not sure if your daughter is old enough though.