hey mate ,
===================
☆TRENCH FOOT☆
This was an infection of the feet caused by cold, wet and insanitary conditions. In the trenches men stood for hours on end in waterlogged trenches without being able to remove wet socks or boots. The feet would gradually go numb and the skin would turn red or blue. If untreated, trench foot could turn gangrenous and result in amputation.
===================
I HOPE IT WILL HELP YOU:-)