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Antispasmodic medications are often used to help control the type of pain caused by damaged nerves.
Anticonvulsant drugs are primarily used to treat people with epilepsy. But the nerve-sedating properties of some of these medications can help soothe the feeling of heat, tingling, or sharp pain caused by nerve damage.

What causes pain?

Nerves can be damaged for many reasons, including injury, surgery, illness, or exposure to toxins. Damaged nerves activate improperly and send useless pain signals. This type of pain can be debilitating and difficult to control.
Nerve damage (neuropathy) may be caused by many different conditions, including:

• Diabetes: High blood sugar levels, which is common in people with diabetes, can damage nerves throughout your body. The first sign is generally numbness and pain in the hands and feet (diabetic neuropathy).
• Shingster: Anyone who has previously had chickenpox is at risk of developing shingles, a blistered rash that causes pain or itching. A condition called “postherpetic neuralgia” occurs if the pain of shingles persists after the rash disappears.
• Chemotherapy. Some chemotherapy drugs can damage nerves, causing pain and numbness, generally starting in the tips of the toes and hands (neuropathy).
• Herniated disc. Nerve damage may occur if a herniated disc in the spine puts too much pressure on a nerve that runs through the vertebrae.