Neuropathy occurs when a nerve is damaged, resulting in swelling and inflammation. The result is numbness, tingling, and burning sensations. When neuropathy affects the feet, it increases the chance of injury and wounds may go undetected. The resulting swelling and inflammation can be caused by a wide range of factors, including alcoholism, exposure to toxins, trauma, tumors, and diseases, such as autoimmune disease or diabetes. Diabetic neuropathy is a special concern because it takes diabetics longer to heal, so they are at a higher risk for infection.