Even young people are exposed to a great deal of suffering from this source, and we feel sure that every one of these may be at once relieved and cured by the vigorous use of the cold compress. When the patient is warm in bed, the cold compress is one of the most delightful of applications; and the warm olive oil, to keep what has been got, make up a real blessing for the sufferer. We have seen cases in which the cold compress has been applied up and down the spine, but not with that full effect which could be desired. Somehow it has not power enough in the hands applying it to reach the roots of the evil. The want in such a case is generally of a person sufficiently skilful in the use of the cold towel. There is a way of pressing it gently over all the parts under which the affected nerves lie, which secures the cooling of those roots very effectually. But such skill is not always at hand when needed. Well, mustard is spread over the surface of the cold towel, and the compress, thus increased in power, is placed all along the centre of the back. We find that very soon the pain begins to moderate, and ere long it has ceased. If it has to be applied more than once, cayenne is greatly to be preferred. The pepper does not hurt the skin, the mustard very soon does. A cold damp towel, folded at least four-ply, and placed properly, after being sprinkled well with cayenne, has an excellent effect. In wild toothache, or bad nerve pain in the head, massage all over the head for a considerable time will often cure. We know cases in which agonising pain was thus removed years ago, and it has never returned. There was first rubbing, in a gentle soothing way, over the whole head. At a certain point, that began to lose its soothing influence. The cold towel was then wrapped round the head, and gently pressed. As soon as it warmed it was changed. This was done for perhaps three or four minutes, and the rubbing repeated. The whole was kept up for about an hour. All pain and uneasiness were then gone, and there was no return of either. It will be seen that it is essential properly to distinguish between the pain requiring heat and that requiring cold for treatment. In any case it is safe first to try the heat. Failing relief with this, the cold may be tried. Sometimes the cooling of the head and spine succeeds in driving off several attacks, but eventually fails to relieve. If in such a case the cold is applied over the stomach, there is frequently almost instant relief. Where the attacks can be traced to indigestion, or come on always a certain time after a meal, this is the proper method from the first. Where a decayed tooth is the cause of pain, of course go to the dentist.