hi there, your wife is experiencing post spinal headache which is quite common following a spinal/epidural anesthesia
. She should take adequate fluids in the form of juices, coconut water or coffee or any other bevewrage high in caffaine. Sometimes intravenous fluids (fluids administered into the veins) may be required. Strict bed rest
for 24-48 hours is also recommended. If these do not help her then the anesthesiologist can create a blood patch to seal the hole that caused the leak. hope these help. Take care.