Trench foot
The mainstay of treatment, like the treatment of gangrene, is surgical debridement, and often includes amputation. Self-treatment consists of changing socks two or three times a day and usage of plenty of talcum powder. Wherever possible, shoes and socks should be taken off, feet bathed for five minutes, patted dry, talcum powder applied and feet elevated to let air get to them.
Surgical treatment of ingrown toenails
If the nail becomes ingrown again after a wedge resection, more invasive surgery may be needed, although this rather drastic measure may not be necessary: less invasive repeat treatments such as destruction of the nail bed, should be considered. This surgery takes longer than the minor wedge resection. The toe is torniqued and incisions made from the front of the toe to around 1 cm behind the rear of the visible part of the nail. These incisions are quite deep and will require stitching and will also scar. The nail will then be cut out, much like a wedge resection and the nail bed will be broken to prevent regrowth. The nail will be significantly narrower and may appear visibly deformed but will not become ingrown again. Note: if undertaking this surgery it is advisable to rest for at least four days before resuming regular walking as even with painkillers this can be very very painful. If one's work requires standing up for extended periods of time, arrangements for time-off may be necessary for up to two weeks.