The Cold That Wouldn't Die.

I know. Sounds like Mystery Science Theater 3000 fodder, right? Seriously, this cold just will not quit - Leo's, I mean. He's had this terrible cough for a week now. He's usually ok during the day, but will have coughing fits at night and in the morning and they just won't stop. He goes until he's out of breath, then he cries. And not just any cry; he does THE LIP and looks at me like, "Mommy, why?" It breaks my heart. I just want to hold him and make it all better. I guess it's getting gradually better, but it's still there and it sucks. I'm just so sad knowing that it's gonna be like this for the rest of my life. Experienced mammas, help me out: What do you do when you can't make it ok?