Numbness of the arm does not always need to take medicine, arm numbness is mostly due to the peripheral nerves of the arm are compressed. And there are many reasons for the phenomenon of arm numbness, such as incorrect posture, cervical spondylosis, cerebrovascular lesions and other diseases can cause arm numbness. According to the different reasons, you need to choose the appropriate medication. 1. Incorrect posture: the numbness of some patients is caused by incorrect posture and compression of the arm, which is a normal physiological reason and usually does not need to take medication, and it can be improved after eliminating the causative factors. 2. Cervical spondylosis: After cervical spondylosis occurs, the blood vessels at the cervical vertebrae are compressed, which may lead to poor blood circulation, resulting in numbness of the arms. Nutritional nerve medications such as methylcobalamin tablets can be taken under the guidance of a doctor to relieve symptoms. 3. Cerebrovascular lesions: If the numbness of the arms is accompanied by dizziness and headache, the numbness of the limbs is usually caused by cerebrovascular diseases. Usually you can take antiplatelet drugs under the guidance of the doctor, such as aspirin, clopidogrel and so on. Patients with symptoms of numbness in the arm are advised to seek medical attention in a timely manner, to clarify the cause, active treatment, and strictly comply with the doctor’s instructions for medication. Do not take drugs blindly, so as not to cause adverse consequences.