I've read so many hundred of posts on this topic, I feel like I've already done the treatment. But in actuality, I started two-a-days today on my face, and I have the whole, lovely two-to-three weeks to look forward to.
My derm recommended only two areas -- my nose (two obvious lesions and probably some small ones) and a region on my right cheek. I'm in California with Kaiser, so you don't get to talk with these chaps very long. But after reading these posts and viewing the required Texas Chainsaw Photograph sequences, I think it best to cover a little more territory with my Efudex. So I'm overruling my physicians and using the cream on my nose, both cheeks, my temples, sideburn areas, and my entire forehead. I see the little AKs here and there, so I might as well go after them now rather than make this a piecemeal thing that will take years.
I'm lucky, in that I'm self employed and live in the country. I need not show my hideousness to anybody but myself. I imagine I might sharply reduce my time looking at the mirror, for mental health reasons. Those online photos are quite arresting, let us say. And my brother (who is now warned, and is constantly scanning his entire body for AKs) will go do the shopping for me, and maybe quietly leave a bag of medical supplies and foodstuffs on the porch while he hears the low moaning from inside my temporary skin clinic....