Still coughing after all these days

I've had a cold since probably the 30th of January. It's starting to annoy me, in fact I'm thinking of using it to excuse my bad mood of the past week. (Although last night on the way home from work I had one of those brief moments of light when you feel like everything is going to be just fine. You ever had that feeling? It's pretty rare for me.) I'm trying to get better, I've been going to bed early, eating a lot (feed a cold right?) and in general trying to take it easy, but so far I haven't been able to shake it.

Hacking cough