Some types of pain relief will only be available in large or teaching hospitals, others are widely available in all hospitals. Your midwife will also be able to offer you certain types during a home delivery. Regional anaesthetics These remove sensation from part of your body by blocking the transmission of pain from nerve fibres. Caudal anaesthesia is administered by an injection into your spinal area around the sacrum, and numbs your vagina and perineum. This may be used for short-term relief if the birth involves a vacuum extraction or forceps delivery. To administer a pudendal block, anaesthesia is injected straight into your ...