Aww... I remember those days..
Well, once my son had the worst cough ever.. and nothing would help him, when I took him to the er, a doctor told me that the best thing I can do for him was to sit in the bathroom with him.. So ever since, I try this first before any medicice when they have a bad cough.
So this is what you do... Let the hot/warm shower run for about 10 mins. .
You cansit in the bathroom (close the toilet top, and place a towel, etc, and sit there), or get a chair, whatever works for you. You will be a bit hot and unconfortable, but this will help clear out any mucus in the chest, and it will soother baby right to sleep. Sing to her, humming sounds and you'll see she'll fall right asleep. Holding her is best while doing this. If anything you can bring the carseat, and let her breathe in the steam while you take a shower. This helps her and you at the same time.. the warm water will help your disconfort too.
So anyhow, before you do this, Get a few things ready before you go in the shower: Make sure you have some towels, and blankets for the way out, and if you want a bathrobe for yourself. Everything you need in the bathroom. You cannot just open the door, this is not good.
When you are done (10-15 mins, you can stay longer if you want... the more the better.. )make sure to cover her up really good, like a blanket over her head, etc. So that she doesn't feel cold as you walk out. hold her like this for about 3 mins.. untill her body slowly adjust to the room temperature. Slowly take the blanket off, and just hold her a bit longer. You will see that she will be coughing a lot while in the shower... this is good. This means she is letting all the mucus out, and brign comfort. This will help. You might even want to give her a bath before you walk out of the bathroom, I'm sure that all the time you can give her with this steam will soother her chest, and let loose lots of what is bothering her.
Oh, another thing that helps is giving baby tea. I come from a spanish decent, so teas are very common as a natural remedy.. specially for babies, we use chamomile which is a very soft and comforting tea. It is safe for babies.. and since milk is not so great for them at this time with all the congestion. My mother, and also I, gave our babies chamomille to soother them to sleep.
chamomille aside form having a soothing affect on the stomach, it is also known to soother you to sleep. So, this is totally safe. Just boil some water, and make the tea like you would for yourself with a bit of sugar.... adn then, place it on the bottle and put about 1/3 of cold water so that it warms up. I hope you try it. This was the best thing when they were sick. I would offcourse alternate with milk, and pedialite if needed. But the chamomile tea is still my daughter's favorite when she is sick.
Also, keep a humidifier in baby's room.. and one way to get some sleep is have baby sleep on top of your chest while reclyning on a reclyner chair, if you have one, or place support for yourself. You can use those carriers that one uses to carry baby in front of you, or you can just be creative and make sure she is snuggled there.
When baby sleeps head down will sleep better... plus think of how you feel when you are sick.. which way do we feel better sleeping... plus hearing your heart will keep her calm too.. and you will be able to feel anything unusual.
Ok. well good luck. And hope you get some sleep.
God bless you and baby,
C.