Hello. My mother is suffering from lower back pain in left side and whole left leg. Doctor says that it is nerve damage due to side disc of spinal cord. He says that she will get normal on her own and have to take bed rest. But the pain is intolerant. She has not slept from 5 days and is not able to even lie on bed or sit or walk. She is taking voveran injection from last two days but its effect is over by 6-7 hours. She again suffers from the pain the whole day and keeps shouting and crying. Please suggest me what to do. Can voveran injection be taken more than once a day?