Finger numbness can be caused by a variety of reasons, different reasons, need to use different methods, there is no fastest way to cure. Common causes of finger numbness include cervical spondylosis, diabetes combined with nerve damage, hyperventilation syndrome, etc. 1. Cervical spondylosis compresses the nerves, you can do traction treatment of the cervical spine, and in serious cases, surgery is needed. After the compression symptoms are relieved, the numbness of the hand can usually be improved very quickly. 2. Diabetes combined with upper arm nerve injury, you can use insulin to control blood sugar, with methylcobalamin, vitamin B1 and other drugs to regulate the nerve. The above drugs should be used under the guidance of a doctor. 3. Hyperventilation syndrome, usually related to tension, will first have too deep and too fast breathing, and then numbness in the fingers. The numbness of the fingers can be improved quickly by slowing down the respiratory rate or using mask breathing to increase the carbon dioxide retention in the body. Because there are many causes of finger numbness, once it occurs, you should visit a neurologist to determine the cause.