I have a newborn and I'm sick. what can I do?

Racheal
I have a two week old and I just developed a cough (assuming I have a cold). There's no raver just a cough and congestion. I'm so scared that my baby boy will get it. What can I take/do to get over it quickly?
Update: I forgot to mention I started to get congested while still in the hospital, I had a csection, but the doctors didn't say anything about the congestion. They just said my body was working itself out and it was fine, but over the last two days it's evolved from a dry cough to definitely knowing I need to cough something up type of feeling.