Two days back I accidentally cut my left hand middle finger where the knife went nearly 1cm inside it. I had a lot of blood loss which stopped once the doctor dressed the wound. Since then the finger is totally numb and I could not feel any pain in the injured area. But if I try to use the injured finger or hold any thing I can feel a sudden shock in my whole finger. Will the numbness cure automatically? Or else I should visit the doctor for treatment.