Hi i am Dr Ahmed Aly thanks for using HealthcareMagic site , I had gone through your question and understand your concerns .. I think you may need to avoid standing or sitting for a long time to prevent blood stagnation in your lower limbs , avoid bending your knees to provide wider space for your blood back flow towards your heart . Wearing compression stockings , hot massages with anti-inflammatory gels and leg elevation will be very helpful in most of cases . You mentioned taking a lot of cardiac medications so before adding any new proscription you have to ask your cardiologist about it . avoid overweight and high cholesterol and salty meals . If edema persists i recommend Doppler U/S to exclude DVT ( deep vein thrombosis ) as it may sometimes cause severe and dangerous complications and worsens your edema and cardiac problems . follow results with your hematologist for proper evaluation and management . Please click and consider a 5 star rating with some positive feedback if the information was helpful. Wish you good health, Any further clarifications feel free to ask.