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.
Diseases of the foot
Flat feet (Pes planus foot) essentially means that the arch inside the foot is flat. This very common painless disorder may occur at birth or after pregnancy. Flat feet generally do not cause problems but may sometimes cause the foot to rotate inwards (pronation). There are orthotic shoe insoles (foot orthotics) that help correct flat feet. Surgery does not correct flat feet and should be avoided.