What is used to treat congestive heart failure?

Variety of things. Congestive heart failure is treated by altering the environment in which the heart works and altering the function of the heart itself. Changing the environment can include lowering blood pressure, removing fluid from the body, or fixing a hyperactive thyroid. Fixing the heart itself can include controlling an arrhythmia, fixing a valve, or opening up a coronary artery.
CHF. Treatment depends on what the cause of the CHF is. Could be surgical, could be medical. Systolic CHF is different from diastolic CHF and valvar stenosis CHF is different from valvar insufficiency chf. Virtually all kinds have diuretic as part of the treatment.