well you don't really want to get your toenail taken off because it really hurts but it can fall off if you stub it very hard or if you get it stuck under something like a door
Nothing. It either will completely fall off and grow again or will attach itself on its own.
By picking or peeling the toenail off.
The gauze kept the flies off of the meat.
If you drop something heavy on your toenail, it will kill the nailbed and it will fall off. Usually will grow back eventually.
Yes.
The doctor might tell you to put new gauze on.
Yes, a toe nail can grow back if it falls off twice, but it depends on the damage done to the nail bed. It make take longer to grow back after falling off twice.
No! Let the new toenail grow to replace it.
If you hit your nail and it falls off that is perfectly normal. It even happened to me. All you need to do is keep a bandaid on it to keep out bacteria, and a couple weeks a new nail will grow back. put a bandage on.
The dead nail will begin to detach (and eventually fall off) while a new toenail grows in.
Definitely go to your doctor or a hospital. You will need anti-fungal cream, plenty of gauze and the manual precision of a professional. This does sound painful, so do not stub your foot! However, sometimes the pain of a toenail before it breaks off is much worse than after it does. The healing is a relief and a whole new nail will grow back cleaner over a year.