Please help!?!

Kelsey • I thank God daily for my blessings. Amazing husband, handsome 6 year old boy who gets a new brother due 6/11/16. 🙏😍🙏
I have s terrible cold and the Robitussin I'm taking just doesn't seem to be cutting it at all! Are we allowed to use nasal decongestants? I can't breathe out of my nose for the life on my and see a restless night if I can't fix it. 😔