Thanks for writing to us.
The persistent swelling of the feet in your wife's case can be due to many systemic diseases like renal or cardiac problems, hypertension
, local allergic edema, angioedema
, autoimmune disorders
, etc. All the causes need to be ruled out after a physical examination and necessary investigations.
I hope this information has been both informative and helpful for you.
Dr. Praveen Tayal