Check with your doctor if you are having swelling. Depending on the cause, you might be prescribed diuretics. Sometimes it is easier to and safer to drain the excess fluid simply by elevating your limbs above the level of your heart -- lie on your back and raise the legs on some pillows, for instance. This creates a situation where your heart recognizes the pressure change and the kidneys are signaled to drain excess fluid. Compression socks can help with the pain caused by edema, as well.
This does not constitute medical advice -- I am not a doctor. Please consult with your doctor before making any sudden changes to your routine.
Best of luck -
Jeffrey, LungCancer.net team member