My daughter is 5 months old and recently got sick. It started with a congested nose so I went out and bought her saline nose drops and it's been helping. Last night our neighbors had a party next door and we felt obligated to go because they're really nice people so I had to take my daughter out. They party started around 7pm. I know that having her out made her get worse because today her cough is pretty bad. No fever thank god. How can I help her with her cough? How can I make it go away?