Peripheral neuropathy is a common condition caused by damage to peripheral nerves, often associated with diabetes, infections, and toxins. Symptoms include numbness, tingling, and pain, usually beginning in the extremities, and while the condition cannot be cured, treatments can help manage symptoms and address underlying causes. New FDA-cleared treatments, like the Calmare device, aim to retrain the nervous system for pain relief, showing promise for neuropathic pain management.