You will start by determining the cause of your feet numbness. Some of these causes include a change in any medication, a fall or head, spine or back injury, and diabetes. Therefore, you can start by avoiding tight shoes, high impact exercises and take medication that can work to reduce swelling. You can check out http://www.ptsue.com/articles/what-should-i-do-my-numb-feet for more information or plan to see a doctor.
Massage your leg starting from your thigh, to your calf, to your foot to get the circulation going again. Feel your toes, if this continues and your toes are cold to the touch, it's time for healthcare intervention. For now, seems you have no worries.
i say you try to rest it the more you walk on it the more it stays like that i say try to put some ice on it for a few minutes then try to put so cream on it and also take painkillers if you feet are still num after all these tips i suggest you see a doctor cause you might have had a allergic reaction to something that why your foot probably num <
Put all your weight on your foot that's numb. It will soon wake up. Hold onto a chair if you worry it may not support you. If you sit with your legs crossed this can happen as the top leg is bent & hangs over the bottom knee which cuts of the blood circulation. It's funny cos as I'm sitting her with my legs crossed & answering this question my top leg has also gone to sleep. I have just unnumbed it by uncrossing my legs & standing on it. You can also march your feet up & down on the spot or stretch your leg out & point your toe (flex your foot) back & forth. It doesn't take long to unnumb it.