We can benefit the kidneys vastly through acting on the liver, as well as on themselves. By a large hot bran poultice over the liver we can add new life to that, and whatever does so tends to benefit the kidneys. After using this large poultice, with plenty of oil rubbed on before and after, say three or four times, place it over the kidneys and use it as often there. If the heat is well kept up for an hour at a time, one poultice a day would do, but, if the patient desires it, twice a day will be all the better. It is good to do the best that can be done with the skin. By means of soap and oil rubbing, and the cleansing effects of diluted acetic acid, very considerable help may be gained. Good can be done by a hot fomentation of the feet and legs to the knees, with oiling after, so as to have these extremities in a comfortable state. Tea, coffee, and sugar _must be avoided_. Diarrhoea.--Sudden attacks of this, though in a mild form, are very troublesome. An enema of _cold_ water is in such cases often an immediate cure. The first injection may be followed by even an excessive motion, but if a second cold injection be given this will cease. But in more troublesome cases, where the patient is an infant, or very weak, this is not applicable. For such cases, mix equal quantities of honey and lemon juice (one or two teaspoonfuls of each), and add enough boiling water to dilute it for taking. Give this three or even four times a day. It will usually and speedily cure, and is relished by infants. Often the cause of diarrhoea in infants is the infection of milk by flies (_see_ British Cholera), or from dirty feeding bottles. Bottles with tubes should _never_ be used. The india-rubber teat should be smelt to see that it is perfectly sweet and clean before the bottle is filled. Unsuitable or too rich food will bring this trouble on. A tablespoonful of blackberry (or brambleberry as it is also called) jelly may be given--it is a powerful and simple remedy. In adults, a dose of castor oil, with a few drops of laudanum in it, will probably remove all trouble, if it be due to nothing more than indigestible food. Where the cold enema is dreaded, one of hot thin starch, with fifteen drops of laudanum in it, may be used for adults. Stale vegetable or animal food, also impure water, are fruitful sources of diarrhoea. The mind has a great effect on this trouble, anxiety and worry are frequent causes. _See_ Worry. A comfortable seat by the fire, and an interesting book, will often relieve. When the diarrhoea is very serious, use the four-ply flannel bandage. _See_ Bandage; British Cholera; Dysentery.