Epsom salt soaks and/or Morton Epsom lotion will help with the
circulation in your foot.

Did anyone explain what happens during a bone crushing injury?

You get damage to the skin, ligaments, the lining around the toe bone (the periosteum) and the bone itself.
http://www.britannica.com/EBchecked/...978/periosteum

You can have lingering inflammation to the ligaments, which have nerves in them, or crushing to the nerves themselves, and the periosteum has to regenerate to do its job with bone remodeling. It is damaged, then it will take time to regenerate.

The magnesium in either the epsom salts or the Morton's I recommended to you before, will help the blood flow to your foot. This will help speed healing and lessen the inflammation caused by Cox-2 cytokines, which tend to cause the blood vessels to constrict where there is injury.

If you get the lotion, which is far more concentrated and convenient than epsom salt soaks, apply it to the ankle, and top of the foot. That is where most of the poor circulation is. It will drift down to your toe. Sometimes the BEST intervention is a simple one.

Make sure your socks do not leave constrictive marks on your lower leg, and that your shoes are not too tight, or tied too tightly. This will compress both nerves, and small blood vessels and impair the circulation to your foot. The redness and warmth may be the blood returning after a long day with some issue preventing good blood flow.

Magnesium does 3 main things.
1) increases blood circulation where it is applied
2) blocks the NMDA pain receptors
3) relaxes muscle and works opposite to calcium which contracts
muscles. So magnesium tends to prevent twitching and cramping.