Lumbar vertebrae cause numbness of the back of the feet, mainly because of the protruding intervertebral disc compression of the spinal cord and nerve roots, causing lumbago and one side of the lower limbs of the radiating pain and numbness and a series of nerve compression symptoms, you can choose analgesic anti-inflammatory drugs under the guidance of the doctor, neurotrophic drugs, blood circulation and blood stasis drugs, and so on. 1. Analgesic and anti-inflammatory drugs: you can choose non-steroidal drugs, such as Celecoxib, Loxoprofen sodium and other analgesic and anti-inflammatory drugs, which can reduce the edema of the nerve and the inflammatory response of the nerve, and play a role in alleviating the numbness of the dorsum of the foot. 2. Neurotrophic drugs: you can choose vitamin B1, vitamin B6, methylcobalamin and other drugs, which can nourish the nerves, and can play a helpful role in promoting the recovery of nerve function, and long-term use can help to recover the nerve damage and improve the symptoms of numbness of the back of the feet. 3. Blood-activating and blood-stasis-removing drugs: Oral Panax ginseng tablets, Salvia divinorum tablets, Shujiwei Xuejun and other blood-activating and blood-stasis-removing drugs can help to promote the blood circulation of the lumbar back and reduce the symptoms of compression and irritation of the nerve root, which is conducive to the alleviation of numbness of the back of the feet. When the lumbar spine causes numbness of the back of the foot symptoms, you should consult a doctor in time, clear diagnosis and then standardized treatment. The above medication should be used under the guidance of a doctor.