Okay y’all recommendations on what do to help my sick 9 month old!

She’s congested, has a runny nose and a loose cough. I’ve taken her to her pedi and after ruling everything out it seems as though it’s a cold. However, her coughing is keeping her from sleeping and definitely keeping her up at night. I wedged her mattress so it’s sitting at an angle, I’ve been using infant saline and the sucker for her nose. I was doing some research and i think I might try mommy’s bliss for infants for colds and or/ zarbees. Any recommendations?! This momma is desperate for some sleep.