Hey ladies! I'm starting to get a cold, been sneezing & coughing. I just feel all stuffy. I have a 7…

Hey ladies! I'm starting to get a cold, been sneezing & coughing. I just feel all stuffy. I have a 7 week old baby boy and I've noticed he's starting to cough, more each day. I'm worried I don't want him to get sick, I'm home with him all day and my husband can't watch him til he's off at 5pm from work. What can I do to prevent him from getting worse? Or if he does get sick how do I treat it?