The treatment of plethora is, in most respects, as nearly as possible opposite to that recommended in anaemia. The patient should be instructed to restrict his diet and to abstain wholly from the use of flesh, condiments, fat, and all stimulating foods. Sugar should be used very seldom. The diet should consist chiefly of fruits and grains, and food should be taken twice a day, never between meals. The patient should take a large amount of exercise daily, and be in the open air as much as possible. A course of energetic eliminative treatment is necessary to arouse to activity the sluggish organs, and by this means to purify the blood and thus improve it in both quality and quantity. There is no necessity for blood-letting, the practice so much in use for the relief of plethora a quarter of a century ago. At that time it was so commonly resorted to for this purpose that ordinary barbers practiced it, and many people considered it almost as essential to be bled as to be shaved or have their hair cut. All the benefits that could possibly be derived from bleeding may be obtained from the use of Turkish, Russian, vapor, and hot-air baths, and from the use of packs, rubbing wet-sheets, electro-thermal, and other forms of bath. Medical treatment is scarcely called for in the treatment of this affection, since recovery spoeedily takes place when the causes are removed.