Sidelined by a cold

I have been running and training for a mid-november half marathon, but last week I caught a cold which has sidelined me for a little over a week. All the traveling and long work days paired with a good training scheduled just zapped me. I got a head and chest cold last week and I thought it best not to run until I kicked it. I started feeling better later in the week and did a short run. I missed a long run last week due to this cold and will need to miss it again this weekend due to some personal travel. That basically will mean ~3 Weeks since my last long run, I may need to look for a late November or early December race.