Phosphorus is a chemical element that is found naturally in air, rocks, soil and organic materials. It is essential for life, and one of the main chemicals necessary for plant growth. As a result, the biggest use of phosphorus is in artificial fertilizers.
When gangrene affects your skin, signs and symptoms may include: 1  Skin discoloration â ranging from pale to blue, purple, black, bronze or red, depending on the type of gangrene you have. 2  A clear line between healthy and damaged skin. 3  Severe pain followed by a feeling of numbness.
Symptoms of wet gangrene may include: 1  Swelling and pain at the site of infection. 2  Change in skin color from red to brown to black. 3  Blisters or sores that produce a bad-smelling discharge (pus). 4  Fever and feeling unwell. 5  A crackling noise that comes from the affected area when pressed.