Pain, while always a dreaded symptom of disease, seems, with the increase of comfort and the gradual abolition that has come in our time of many of the trials of existence, to have had its terrors increased. Even a slight pain or ache is dreaded, and if continuous or frequently repeated, becomes for many people a trial that is almost impossible to bear. This is all the more to be deplored because ability to stand a certain amount of pain, with reasonable equanimity, is almost a necessary condition of rapid recovery from disease or injury. Placidity of mind favors the flow of nerve impulses for reconstructive purposes, while over-reaction to pain inhibits the natural processes of repair. According to Shakespeare's heroine: "There was never yet philosopher that could endure the toothache patiently." Pain is usually supposed to be an essentially physical phenomena for which mental influence can be of little, if any, benefit. As a matter of fact, however, the mental attitude towards pain modifies it to a considerable degree. I have quoted Hippocrates' declaration that a greater pain drives out a lesser pain. Any strong preoccupation of mind will greatly lessen pain at any time.{236}

Pain is not, after all, in the nerves, nor in the central nervous system, but in the consciousness. Just as there is no sound unless the waves in the air arouse recognition in the consciousness, so there is no pain unless the disturbance of nerves finds its way above the threshold of consciousness. Nerves may be racked, yet no sensation may be felt. There may be pain in the mind apart from the nerves, and slight nervous affections may produce severe pains. The whole question of the treatment of pain involves the individual much more than it does the affliction which causes the pain. What seems unbearable pain to many may be little more than a passing annoyance to others. What would be, under ordinary circumstances, intolerable torture, especially to sensitive people, may, because of intense preoccupation of mind, remain absolutely unnoticed. Maniacal patients sometimes inflict what would normally be extremely severe pain on themselves by burning or mutilation without any manifestation of pain. In the excitement of a panic men may suffer what would, under other circumstances, be excruciating agony, and yet not know that they are hurt.

To a mind that is without serious interest, even slight pain, if continuous, soon becomes unbearable. The course of pain, where there is no diversion of mind, is an interesting study. While suffering, we seem always able to bear the pain of the present moment, and it is only the cumulative effect of the pain that is past and the anticipation of the discomfort to come, that make the pain unbearable. Nearly, always it is much more the dread of what the pain may mean, and the lack of power to endure which gradually develops as a consequence of suffering, that constitute the worst features of pain. At the beginning of a period of pain we stand it well, as a rule, but its continual nagging debilitates us and heightens our susceptibility until we cannot nerve ourselves to further endurance. If our power of endurance were not thus gradually lessened the pain would not seem severe. There are many neurotic people whose susceptibility to pain has been so much increased by their lack of self-control and their tendency to react easily to pain, that even slight pain becomes a torment. Psychotherapy should gradually train these people to a power of endurance.

Pain from Over-Attention.—Much of what is called pain is really due to such concentration of mind on a particular portion of the body that the ordinary sensations of that part, usually accomplished quite unconsciously, become first a source of uneasy discomfort and then an ache or pain. There may be some slight physical disturbance which calls attention to the part, but there is no really serious pathological condition. While such pains are spoken of as imaginary it must be remembered that this does not mean that they are non-existent. On the contrary they may be much more real to the patient than physical ailments. A pain in the mind is a much more serious condition than having it in the body.

While pain may be thus created by concentration of attention, it must not be forgotten that what the mind can do in increasing pain is even more important than in originating it. Slight discomforts by concentration of attention on them may be made insupportable. It is this element in pain, above all, that the physician requires skill to alleviate. Habits of introspection and the lack of serious occupation of mind of many people leave them the victims of over attention to themselves. In trying to relieve their pain it may be {237} comparatively easy to alleviate their physical condition, but the mental condition, once aroused, may remain, and may easily tempt to the use of habit-forming drugs or others that may do serious harm. The story of the evil effects of headache powders in recent years, and of the opium habits formed in olden times, are a significant commentary on this fact. It is probable that in most of these cases, the discomfort for which remedies were frequently taken was of a kind that should have been treated only partly, if at all, by drugs. It is more important to lessen susceptibility than to try to cure the pain.

The relation of the mind to what is often considered severe physical pain, has come to be generally recognized in recent years. Neuralgias, for instance, have often been reported as recurring after fright, or strong emotion, or worry. It is at moments when patients are much run down in health that pains are particularly likely to be unrelievable, and during periods of emotional strain that anodyne drugs are most called for and are most likely to be abused.

Rest and Pain.—In any study of pain and its relief, one must always recur to that classical contribution to medicine, now in the fiftieth year of its publication and still as important as when it was written, Hilton's "Rest and Pain." He calls attention to the fact that what he wrote was only a development of what many practical physicians had thought long before his time. He quotes a prize essay of the French surgeon, David, written in 1778. Hilton's development of the idea that pain is usually a signal on the part of nature for rest, and that rest will usually enable her to overcome the pathological condition and so relieve the pain without recourse to drugs, is, and ever must be, the basic element in the therapeutics of pain. How many forms rest may take can only be judged by a careful reading of Hilton's book. The oftener one reads it, the better one realizes how much of precious common sense and acute clinical observation there is in it. It is essentially a book of psychotherapy. It treats the patient's mind first and then through that changes his habits, persuades him of the need of rest, directs how that rest should be taken and so leads up to his natural cure.

Every treatment of pain must include rest of mind as well as body. Hilton has particularly dwelt on the rest of body. Rest of mind is just as important. Many pains could be easily borne were it not for the worry that accompanies them. A slight pain becomes greatly annoying because the patient's general condition makes it impossible to stand discomfort with equanimity, and there has been no training in self-control. In spite of all our advance in medicine, we are not likely ever to make life so free from pain that people can go through it without needing self-control. Training in self-control is an important psychotherapeutic prophylactic. If, with a certain amount of capacity to bear discomfort, there goes such rest of mind as does not exaggerate or emphasize the condition, then many of the pains of life lose their power to annoy, all of them are distinctly lessened and the relief of them by accessory physical methods becomes easier.

Pain in Its Relation to Life.—There is an unfortunate tendency to exaggerate the significance of pain. We have cultivated irritability in the physical sense, rather than the power of endurance. Patients should, as far as possible, be lifted out of this condition of over-delicate sensitiveness and put into a state where the idea of pain is not so serious. Only in this way can {238} the more or less inevitable discomforts of life be borne without such reactions as seriously interfere with health. It may be said to be other than the physician's business to secure this magnanimity, but as magnanimity is needed in our patients, and there is no one else to respond, physicians must start its cultivation. The necessity for learning to bear minor discomforts, at least without exaggerated reaction, need not be presented to the patient directly, but can be gradually made a part of the system of treatment. By absorption in other interests, the consciousness of these discomforts disappears without the necessity for recourse to drugs.

Self-Denial.—Many thoughtful people are sure that what is needed to make a large number of our generation more happy, or at least less miserable, is training in self-denial and in self-control. The word self-denial has come to have a very distant sound for most of our generation. From early childhood anything that is unpleasant is shunned and anything that is difficult is likely to be shirked. The head-master of Eton College has recently insisted that too much is being done to please young folks and too little to stimulate them to activity. He declares that, as a rule, any undertaking begins to be useful just where it ceases to be simply pleasant. Unpleasantness is avoided to such a degree that the habit of thinking that it has no part in life comes to be a second nature. As a consequence, the reaction to any continued unpleasantness is likely to be exaggerated and make the subject very miserable, and sometimes disturbs and discourages, whereas it should have the effect of stimulating to reactive efforts, to bring out the best that is in us.

Hinton emphasizes the fact that an ingredient of pain is necessary to all health or pleasure. The fatigue and the hardship associated with mountain climbing is a portion of the essence of the pleasure in it. All healthy, pleasant exercise has an accompaniment of fatigue and some aches and pains. What is needed, then, in our time is the training to do things for the sake of doing them. We should be neglectful of the discomfort that may be associated with them, or we should even consciously rejoice in the fact that this very discomfort is of itself a sign that functions are being used to such an extent, that their limits are being expanded, their limitations overcome.

It may well be said that it is not the physician who, as a rule, should do this; it should be accomplished in the early years by the teachers and trainers of the young. True enough. But physicians can at least help in reforming the tradition in this matter so as to neutralize the present state of mind which seems to look upon pain as an evil. Pain is always either a conservative sensation or an actual stimulus to function. Besides, many of the present generation who come to us, having had no training in the precious qualities of self-denial and self-control under difficulties and discomforts, must have this knowledge supplied for them as far as possible by suggestions of various kinds. It is more difficult to accomplish much in this matter for the adult, but even in apparently hopeless cases of over-attention to self and incapacity to bear discomfort, much can be accomplished by patience and persistence.

The common dread of suffering is quite unwarranted by what we know about the effect of pain. There are many motives that may be adduced to make it seem less terrifying than it now is to many people. The effect of pain upon character is always excellent. The difference between two brothers, as we have said, one of whom has had the discipline of pain or suffering and {239} the development of sympathy that comes with it, and the other who has not had the advantage of this great human experience, is likely to be marked. In the one there is a depth of human nature that enables him to appreciate and even to express the meaning of life better than his apparently more fortunate brother. Practically all the men who have ever got close to the heart of the mystery of life, and expressed it in poetry or other form of literature or art, have gone through suffering as a portion of their training. Even the suffering that comes from ill health is never wasted. Men have gone through it who have thought that the ecstasy of relief following it made the experience worth while.

Men are not deterred from action by the prospect of even severe pain. Probably no greater physical suffering can possibly be invited than is sure to come to those who go on Arctic expeditions, or who undertake prospecting in Alaska. Of course, many of the prospectors find themselves in the bitter cold of the North without having realized what they would have to stand. But Arctic explorers, as a rule, know exactly what they have to expect. Most of of them have been through it all before, yet they deliberately choose to go again for rewards that, to an average man's eyes, seem trivial. The memory of past pain is rather pleasant. Virgil's "Perhaps it will be pleasant to recall these trials at some future time" is not poetic exaggeration.

The Discipline of Pain.—There is only one way to learn how to bear pain, and that is by practice in it. There might be no necessity for this in case life were arranged differently. But all men must die, and death inevitably involves a painful process. Suffering is practically unavoidable for the majority of men. Even in the midst of every possible material comfort, cancer may come with all its hideous connotations. It is important, then, that everyone should be prepared to stand some pain. Certain suggestions help in bearing special pains.

Pain Diffusion.—Pain along one nerve may readily become diffused. This diffusion will sometimes cause discomfort, and even tenderness, at a distance from the original seat of the pain. Such diffusion tends to produce in the patient's mind the idea that the underlying pathological condition is spreading, though it is only a sign that the nervous system is becoming irritable and easily responding to sensory disturbance. Dr. Head's investigations ("Brain," 1893), should be known to physicians, and the conclusions that flow from them should be presented to patients who are sometimes suffering quite as much from their apprehension of the spread of pain, and its significance, as from the discomfort itself. Dr. Head says:

If I have an aching tooth, the pain is at first localized to the tooth affected. The longer the toothache continues the more I become worn out, and the pain is rapidly accentuated by a "neuralgia," that is, a pain in the face. The neuralgia is soon accompanied by distinct cutaneous tenderness over a definite area on the face corresponding to the tooth affected. If I am anemic, or if the pain remains untreated until my bodily health is affected, I no longer have a localized area of tenderness, but the pain, and with it the tenderness, spreads until the whole of one-half of the head and even the neck may be intensely tender. Thus at last the pain of an aching tooth has produced tenderness over areas which bear no relation to the affected organ.

As pain can be suppressed by diversion of mind, or concentration of thought on something that creates great preoccupation, it must not be {240} forgotten that pain may almost be created by concentration of attention on certain areas of the body, or certain nerve tracts. Over-attention will actually make sensations intolerable that are at first quite indifferent, or at least very easy to bear. Sensitive people, in the ordinary meaning of that term, are those who are much given to paying attention to their sensations, and who therefore have much to complain of them. There is much in modern life that has the tendency to produce this sybaritic condition in which even slight discomforts become the sources of almost unbearable annoyance.

Even where there is no good physical reason for the occurrence of pain, thinking may produce discomfort. The one thing that Freud's work has made clear is that in neurotic persons the memory of a mental shock or strain may be transferred to some portion of the body related in some way to the shock, and then prove to be the source of hysterical pains and also of hysterical palsy. The case told by him in which the young woman massaging her father's limbs allows them always to rest on her own lap during the process, and after his death suffers from an hysterical, painful condition in this region, is a typical illustration. Her sympathy for her father, accentuated by his subsequent death, and her sorrow at a time when her nursing efforts made her particularly susceptible, led to an explosion of nervous energy along those nerves which had always felt the impress of his legs. The hysterical condition resulted. This is an extreme case. In milder forms it would be possible to explain many otherwise inexplicable pains and aches in sensitive young people along these same lines.

More than once I have seen young women, who had been asked to rub father or mother with liniment, complain of tingling pains in their fingers which were followed by some redness so that one would be tempted to think of Weir Mitchell's disease, though evidently the pathological cause at work was the slight disturbance of the vasomotor system due to the liniment and the rubbing, emphasized by the sympathetic feelings, and by the over-attention which this brought about. Whenever women have, for a prolonged period, to nurse others in whom they are deeply interested, and have to perform some habitual action that is somewhat fatiguing for them, after the death of the patient there will not infrequently be the development of hysterical or neurotic over-sensitiveness in the parts employed. This may give rise even to an hysterical joint, or to severe neurotic pains. Once these cases are recognized, the attention can be diverted from themselves and they can be made to understand that their grief and sympathy are being concentrated on the part and by transfer are producing physical manifestations. The pain is not imaginary, but the condition will improve as soon as the mind is diverted from it.

Neurotic and Organic Pain.—The distinction between pain due to a neurosis and to a definite lesion is often difficult to make. If there is a definite localization of pain, it is almost surely not neurotic, but organic. If there are certain positions in which pain is felt while it disappears in others, there is some local inflammatory or congestive condition and not mere hypersensitiveness of nerves at the bottom of it. These positions of maximum pain are important. When pain radiates a great deal, even though there may be complaint of a particular region, it is usually neurotic. If patients are asked to tell exactly where their pain is, and they indicate its location by a wave of the hand, it is probable that the condition is neurotic. When there is a definite {241} localized point of tenderness with the pain, even though there may be radiations, usually the condition is based upon some organic trouble. It must not be forgotten, however, that slight local troubles may by concentration of mind on them, become exaggerated and that, in spite of the fact that there is or was at the beginning a definite localization of pain with some tenderness, the neurotic elements may, after a time, become manifest and prove to be much more important than the others.

Pain that is definitely influenced by motion, as by the jarring effect of walking, or by bending and stooping, is practically always organic. The best differential diagnosis between neurotic abdominal conditions and organic trouble can be made by the help of information obtained in this way. If the appendix is inflamed, or the gall bladder infected, or contains a calculus, or if the kidney has a calculus, these are all made worse by movements, by jarring, by stooping as in tying the shoes, by riding on rough roads, and the like. If patients who suffer from obscure abdominal conditions associated with pain of which they complain much, can, at certain times, indulge with impunity in these exercises and motions, it is probable that their attacks are neurotic in character. Especially is this true if the indulgence in these rides and motions is without effect when they are in pleasant, agreeable company, though there may be some complaints when they have to ride alone, or under conditions that are less pleasant. If a hint of this distinction by which the physician differentiates one form of pain from another is given a neurotic patient, the suggestion will serve the purpose of producing complaints whenever the opportunity presents itself. Such patients take such suggestions, as a rule, without wishing to deceive, but they become persuaded that their sufferings are of the character asked for.{242}