About a month ago, I unintentionally dropped about 20 pounds of steel
on my big toe while barefooted.  It hurt, of course, and my toenail
quickly turned black.  It was terribly sore for a few days.  I wrapped
the toe up and soaked it in rivanol.  I didn't have an infection, and I
didn't want one.  I live in the tropics in a country that has a lot of
nasty stuff in the bathwater, so I was being careful, I thought.

About a week later, my toddler son stepped on my toe while walking
around.  Kind of blackish blood squirted out from under the toenail
(sorry this a little gross.)  It didnt' really hurt, and it looked a
lot better after that.  Unfortunately, since then, my toenail has grown
apart form my toe.  I have noticed in recent days I can see down in the
crack between my toenail and toe almost down to the bottom of the nail.
The right side of the toenail seems connected.

How can I get my toenail to be connected again?  Will it grow back?  if
I tape or clamp it up constantly for weeks will it reconnect?  Does the
flesh in there have to be removed so it will heal back?
I am not asking for an official diagnosis.  Just some theoretical ideas
about how to fix partly detached toenails.  Also, how exactly is the
toenail connected to the skin?  Maybe a toe biology lesson would give
me some ideas for taking care of toenails.

I have been travelling since I found out about my toenails condition
and haven't had much of a chance to go to a doctor.  I plan to return
when I go home.  I live in a developing country, and I would appreciate
some advice from other countries as well, since the medical treatment
isn't always top notch where i live.