Hello
@Julie Marshall-Jones.
To be able to give us better understanding, in addition to needing to know your wife’s type of diabetes it would help to know if she is on any medication. That would help us to be able to give specific, relevant advice.
Some further info about location of the oedema would also be useful. To many, the term oedema relates to feet and ankle swelling, sometimes abdomen, too. Is this what you mean.