We have a case in which, after long rubbing with acetic acid, the skin seemed to become so used to it that little or no effect was produced. For a few days an alkali, in the simple form of "hartshorn" (ammonia) was rubbed on instead of the acid. The acid rubbing was then resumed, and produced its usual effect. Such plans will occur to all who are thoughtful, and do not just blindly follow instructions.

Cold-water cloths have got in certain circles to be fashionable, so that they are used exclusively in all cases. A knee joint has got wrong, and it is deemed the right thing to wear a cold bandage constantly round it. But this fails to have the desired effect. It may not fail entirely, so long as there is some vital energy on which to "come and go," as we say, the effect of the reaction will be to give a measure of relief. But in very many cases this vital energy is deficient. If in such a case the person advising it has only thought enough to have recourse to an hour's hot fomentation once or twice a day, the effect desired may not be long delayed. Supposing something like inflammation of the lungs has to be dealt with. Cold is applied on the chest, as it is often most successfully applied, when there is still a good deal of energy to be drawn upon. But in this case there is not sufficient energy. Well pack the feet and legs in a thoroughly hot fomentation, such as will renew a full supply of heat all over the body. Then you will find the cooling of the chest thoroughly effectual. In a very considerable correspondence we meet often with this resolve: "We shall continue to do as you direct till we hear from you again." We remember telling a young man to put a hot bran poultice between his shoulders for a troublesome cough. We saw him no more for months, but when we did meet him he apologised for not continuing the application. He said, "I poulticed my shoulders for three weeks, and they began to get soft, so I stopped doing it." We certainly thought his head had been soft to begin with! Why should not sensible men and women get a little independent thought of their own?

It may be well to remark that the cessation of all treatment is a change, and often a very beneficial one too. If you do not know what to do when any treatment is "losing its effect," or having the opposite effect to that which it had, just cease to do anything till you see manifestly what is needed. The rest of a week, or even two, may be just the thing wanted. If it is, it will ease the pain; if it does not, you will see that probably the opposite of what you had been doing will suit.

Chapped Hands.—Our idea is that this is caused by the soda in the soap used. At any rate, we have never known any one to suffer from chapped hands who used M'Clinton's soap only.

It is made from the ash of plants, which gives it a mildness not approached by even the most expensive soaps obtainable.

If the hands have become chapped, fill a pair of old loose kid gloves with well wrought Lather (see), putting these on just when getting into bed, and wearing till morning. Doing this for two or three nights will cure chapped, or even the more painful "hacked" hands, where the outer skin has got hard and cracked down to the tender inner layer.

Chest Pains.See Angina Pectoris.

Chest Protectors.—These are often piled on the front of the body, while the far more important back is left exposed. In many cases of delicacy and cough, particularly with women, it is far more effective to protect the upper back with warm extra flannel than to place covering on the chest. This alone will sometimes cure distressing coughs. In every case, such "protection," whether to back or breast, should be such as to secure free escape of perspiration (see Underwear). A sheet of fine wadding is excellent. Where less heat is desired, new flannel is the best. Often, also, chest trouble is best helped by protecting the soles of the feet. If these and the back are kept warm, there is little fear or harm at the front of the chest. Let the back covering, where it is used, come down as far as the top of the hip bones.

Chilblains.—These occur in hands and feet where the circulative power is feeble, either from weakness or from tight pressure of boots or gloves. The cold has power, owing to lack of circulation, to partly kill the skin, which thus becomes painfully inflamed, and swells. To increase and maintain circulation in the part is to cure it. In the early stages, when heat and itching are felt, a good rubbing with hot olive oil and cayenne tea will often cure. But if this fail, pack the foot or hand in cloths soaked with vinegar. If the pain is great, place the packed foot or hand in hot water for a few minutes or more. After this immersion repack with vinegar-soaked cloths, cover well up with dry flannel, and wear this packing all night. In cases where weakness is the root of the trouble, rub the back once a day with hot oil until a glow of heat arises all over it. Do this daily for a fortnight at least. Where tight boots or gloves are the cause, these must be discarded for more easily fitting ones.

Child-bearing.—Simple remedies such as we advocate are found of immense service in mitigating both the pains of child-birth and the troubles coming before and after it.