A dog attacked me at the end of a 2 hour run a block from my house. When I tried to kick it, still running, the dog ran between my legs and my foot rolled forward, fracturing three metatarsals and sending me straight to the ground. The pain was so intense that tears were streaming down my face and I wasn't able to utter a sound. I couldn't touch my foot to the ground, so I had to crawl the half block home on my back with my foot in the air.
I promptly soaked my foot in ice water, dried it off and wrapped my ankle with an elastic tape. Either that day or the next I drove left footed to a hospital where they did an xray, and the doctor said "we might have to put your foot in a cast." I said, I can't do that because I have to run! The doctor said, "No! We're going to put your foot in a cast!" and stormed out of the room, leaving me there supposedly helpless.
I hopped back out of the hospital, drove home, and kept soaking my foot in ice water as often as possible, which I knew was the best treatment from previous injuries. In the next few days I returned to work, and kept hopping around wherever I went. In a week I visited the running podiatrist John Pagliano in Long Beach who took more xrays, gave me the good news that my foot was healing quite well. He also said putting a cast on my foot would have been a big mistake, as it would have atrophied my foot and delayed the healing for more than a year!
He told me to keep doing what I was doing, and gave me a hard soled sandal to wear with the elastic wrap. Based on his suggested schedule, I began my "training" again at 4 1/2 weeks, by hobbling and walking 50 meters for 1 lap of the dirt track where I worked. That night my foot ached more, and I used this as a guide. Too much aching meant that I was overdoing it and back off. Normal aching meant I was on the right track.
At 6 weeks from the injury I was able to start running again. I started gradually and don't recall the progression but it's in my training logs. By 10 weeks I was up to 100 miles a week. I was still hobbling a bit when I ran but my foot was healing quite well. I began racing again with the goal of bettering my time in the marathon. Four months from the injury, I took 4 minutes off my best time that I'd been trying to better for two years. I almost bettered it again three weeks later with a second place (not close to the winner), then smashed it five months after that.
If you follow this method, then I'm sure your foot will be fine.