Hi, my mum has recently been in hospital with AF. She 140kg and suffers from arthritis, is diabetic and thyroid problems. She is booked into see a cardiologist in 3 weeks but has had red swelling legs, wheezing and frequent urination. She is on 2 different heart tablets, a blood thinner and fluid tablet. Would compression socks be helpful for her legs in the interim or could they be harmful?