Treatment of numbness in the left hand depends on the underlying problem, explains WebMD. The doctor must first identify the cause of the condition before recommending treatment. Numbness in the hands can occur due to many reasons, including alcohol use disorder, carpal tunnel syndrome, ganglion cyst, Lyme disease and multiple sclerosis, states Mayo Clinic. Other possible causes include HIV/AIDS, cervical spondylosis, vitamin B-12 deficiency and peripheral neuropathy.
Treatment of the underlying cause may clear up the numbness or prevent it from worsening, states MedlinePlus. Patients with carpal tunnel syndrome need to undertake certain exercises to relieve the condition. Diabetics must strive to maintain their blood sugar levels within the normal range. If the numbness occurs due to certain medications, a doctor may recommend changing or switching the drugs. Patients should keep the hand safe to prevent any injuries or burns because it may have reduced feeling.
People with peripheral neuropathy due to vitamin deficiencies can use vitamin supplements, says WebMD. Doctors also recommend maintaining a healthy weight, eating a balanced diet, limiting alcohol use and avoiding toxicity. It is also advisable to quit smoking, which limits the flow of blood to the vessels that supply nutrients to the nerves. In some cases, doctors prescribe medications used in treating depression and seizures to manage the numbness.