HI, thanks for using healthcare magic Swelling of the legs can be due to different causes such as heart disease, venous disease (varicose veins), liver disease, kidney disease, side effect of medication (eg amlodipine) In some cases, drinking extra fluids would worsen swelling though decreasing the sodium would help. It would be best to consider visiting your doctor for assessment to determine the cause of the swelling. This would involve looking at any relevant symptoms and possibly investigations as well. Investigations may include liver function test, kidney and ECG (takes a look at the heart) Treatment would depend on the cause found. I hope this helps