The condition called neurisn in Leechbook I

Chapter 59 of "Leechbook I", one of three Old English medical texts or leechbooks first edited by O. Cockayne, begins by describing a treatment for "lyftadl" or paralysis and then offers two remedies for a condition called "neurisn". Subsequent scholarship has established that "neurisn" is a swelling or tumour, related to modern "aneurysm". Still to be explained is why a chapter on paralysis should address such a condition and offer remedies for it. The treatment prescribed for "lyftadl" comprises administering an emetic and letting blood from the arm or neck; in contrast, the first remedy for "neurisn" is simply a salve composed of bonewort, sour cream, honey and egg yolk, a formulation that has no exact parallel elsewhere in the leechbooks. Suggests that the term could be an Anglo-Saxon adaptation, influenced perhaps by "paralisin", and introduced as a technical term for a feared complication of blood-letting. (Quotes from original text)