Numbness on the left side due to cerebral infarction is mainly treated with western medicine given to improve circulation and nerve nutrition. In addition to medication, recovery can also be carried out by means of traditional Chinese medicine, such as acupuncture and herbal fumigation, which are more effective. Patients with numbness after the emergence of a sense of fear of cold, feel the numb limbs bubble wind, that is, the emergence of numbness sensory impairment after the resistance to cold weakened. So the affected side of the numbness, pay attention to keep warm to avoid frostbite again. You can do electrotherapy and physiotherapy if you have the conditions, and you can also go to the hospital in time to see the symptoms of numbness.