395. _Sloughing and Gangrenous Ulcerations, and Carbuncles ("Rajah Boils") after suppuration_, are more effectually treated by what is termed "IRRIGATION," which consists in keeping up a continuous stream of water, tepid or cold, as the patient may prefer, for half an hour twice daily. A common kettle, or one of the natives' drinking-vessels provided with a spout, answers well for the purpose, and it should be held so that the fall of water should be about a foot, or rather more, but the height should be regulated in a measure by the patient's feelings. If pain is caused, the height should be diminished. With each irrigation, more or less of the slough comes away, and in a few days the ulcer will, in most instances, assume a healthy appearance, when it may be treated as an ordinary ulcer—with cold water dressing, Turpentine, or Wax Ointment, &c. In the intervals between the irrigation, _Toddy_ Poultices (355) should be applied. 396. Another way in which Water may be utilised is in the formation of a VAPOUR BATH, which is often a most serviceable resource in _Chronic Rheumatism_, _Obstinate Skin Disease_, _Dropsical Affections_, _the early stages of Diabetes_, _and in all cases where the skin is dry, rough, and not much above the natural standard_. It is inadvisable in fever cases. _Incipient Colds and Catarrhs_ following exposure to wet, &c., may often be speedily arrested by a vapour bath, taken immediately before going to bed at night. 397. The Vapour Bath apparatus, which should be kept ready in all large establishments in India, consists of a bamboo frame of a conical shape, covered with wax cloth or some other impervious material; it should be large enough to enclose the whole body (when the patient is in a sitting posture), and an aperture with a loose frill attached, so as to tie round the patient's throat, should be left at the apex. Under this the patient, divested of his clothing, should sit with the head and face projecting through the opening at the top, and a _chattie_, or open vessel, of boiling water having been introduced, sweating soon commences and should be kept up for a quarter of an hour or more. Then the patient should be thoroughly dried with warm, rough towels and go to bed, or be carefully wrapped up in blankets so as to be effectually protected from draughts of cold air. 397_b_. THE WET SHEET has been highly spoken of in the treatment of _Delirium Tremens_; it is applied as follows: Strip the patient naked and roll him in a wet sheet till he looks like a mummy, and then roll a blanket round this again. In many cases the delirious excitement will subside as soon as a hot vapour surrounds the patient, and he will fall into a quiet sleep. It should be used with caution in the case of an old debilitated drunkard. 398. +Wax.+