There is no fastest way to recover from numbness of the index finger, the main thing is to find the cause in time and treat the cause. Common causes include prolonged exertion of the index finger, cervical spondylosis and diabetic peripheral neuropathy. 1. Prolonged exertion of the index finger: If the numbness of the index finger is caused by excessive exertion of the index finger for a long time, which leads to excessive fatigue of the index finger, it is beneficial for the symptoms to disappear soon through reasonable rest and no special intervention is needed. 2. Cervical spondylosis: If the numbness of the index finger is caused by cervical spondylosis, the main treatment for cervical spondylosis can be applied to cervical spondylosis, such as cervical pellets, cervical fukang pellets and other medicines, and at the same time, localized hot compresses, massages, acupuncture, traction and other physical treatments can be carried out to improve the local blood circulation and alleviate the above symptoms. 3. Diabetic peripheral neuropathy: If the numbness of index finger is caused by diabetic peripheral neuropathy, which leads to the damage of peripheral nerves, the main application of glucose-lowering drugs such as acarbose, metformin, or insulin to control blood glucose, and the application of B vitamins, methylcobalamin, and other neurotrophic drugs to promote the restoration of damaged nerves and improve clinical symptoms. If the numbness of the index finger continues to be unable to improve, you should go to a regular hospital in time, and after diagnosing the causative factors by perfecting the relevant examinations, you will be guided by the doctor to carry out the treatment.