Left hand cold a burst of pain numbness consider cervical spondylosis, venous thrombosis and other causes, for the cause of drug therapy, physical therapy, surgery, plasters generally can not be cured. 1. Cervical spondylosis: compression of the nerve root of the left hand sensory loss, numbness, cold, you can perform cervical traction, acupuncture, oral nutritional nerve medication methylcobalamin dispersible tablets, if the compression is serious, conservative ineffective to take the intervertebral foramenoscopy surgery to lift the compression of the nerve. 2. Venous thrombosis: when thrombosis occurs in the upper limb circulation is not good, the local cold, numbness, need to take interventional surgery to remove the thrombus, improve circulation, symptomatic relief. The left hand cold a burst of pain numbness paste ointment does not have much effect, need to target the cause of the treatment.