Toenail Issues?

Several weeks ago I injured my big toe playing tennis, I'm pretty sure it was "turf toe". It hurt for a few days, and eventually the pain ceased. However, this week I have noticed the toenail a little bit loose and tonight my foot rubbed against the carpet and the toenail is completely off except for it is still attatched from the bottom cuticle. I wrapped it in bandaids, what should I do? It could probably completely come off if I soaked it in water, but if so, will it grow back, how long would it take? What should I do in the meantime(shoe-wise, treatment?) Thanks!