There are other dangers, indeed, besides those arising from croup, which accompany diphtheria, though those just mentioned are of all the most frequent. There are cases in which death takes place not from the severity of any local ailment, but from the intense depression of the nervous system. There are other instances too, in which the case assumes what is termed a malignant character; profuse discharge taking place from the nostrils, swallowing being from the first exceedingly difficult, membrane being deposited on the lips, behind the ears, or at the edge of the bowel; death taking place in twenty-four or thirty-six hours from the outset of the first serious symptoms, either in convulsions, or from utter exhaustion.

But the very urgency of such cases must of necessity call for the immediate assistance of the doctor; and my business throughout this book is rather with those points which it is important for a mother to notice, and those things which it behoves her to do.

What does diphtheria depend on? is a question more easily asked than answered. The disease is contagious, as scarlatina is contagious, though not to the same degree. I may add, it is not identical with scarlatina, nor does the one disease protect from the other. It would, perhaps, be too much to say that it is dependent on an unsanitary condition of a town, a village, or a house, but there is no doubt but that, as is the case with cholera, scarlet-fever, or typhus, unsanitary conditions favour its spread, and increase its severity.

Being contagious, it is most important to keep cups, glasses, spoons, towels, and bed-linen separate from those of other inmates of the house, and to remove the patient from any room occupied by other children. Great care too is to be observed, if anyone is standing over the child during a fit of coughing, that none of the membrane which it spits up enters the mouth; and, that if the child's breath is caught, the attendant gargle immediately with a teaspoonful of Condy's fluid in a tumbler of water.

In the next place, as the depression of the nervous system in some cases of diphtheria is quite out of proportion to the local disease, and as children who have not seemed very suffering, have yet been known to die suddenly in an unexpected faint, it is of moment that the child remain constantly in bed from the commencement of the attack till complete convalescence. Nor, indeed, in serious cases is even this precaution sufficient; but in such circumstances not only must the child not be taken out of bed for any purpose, but it must even not be suddenly raised in bed, from a recumbent to a sitting posture. I have, on several occasions, known the neglect of these precautions followed immediately by what cannot but be regarded as the needless death of the patient.

During the illness, there is little for the mother to do, except to try to carry out the doctor's directions, and to give the child constantly little bits of ice to suck, which lessen the swelling of the throat, and relieve the pain and inflammation. If the child knows how to gargle, it should be induced to do so constantly, and finding the relief which this affords, will do so very readily. This is not the time, however, when the lesson 'how to gargle' can be learnt. A thoughtful mother teaches it while the child is well, and if the gargle is composed of raspberry vinegar and water, the lesson is learnt without tears. There comes a time, however, if the disease is at all severe, when gargling is no longer possible, for the muscles of the back of the throat lose their power; but now some medicated solution, employed by means of the spray-producer, may most efficiently take its place.

When croupal symptoms have gone on growing worse and worse, and the child is in the agonies of suffocation, the doctor may propose to open the windpipe, in the hope of giving the child another chance of recovery, and even though the operation fail, of at least lessening its sufferings.

The operation is sometimes objected to by the parents, on the ground of the uncertainty of the result, and the torture of the operation to the child. Now the anguish of a child dying of croup is due to two causes; first, the actual mechanical impediment to the entrance of air produced by the deposit in the windpipe, and secondly, to the spasm of the muscles in the upper part of the windpipe which that deposit produces. How large an amount of distress the latter may produce, anyone can judge for himself, to whom it has ever happened to swallow the wrong way, as it is called. The opening made below the seat of the muscles which close the windpipe, leaves them in perfect rest, and does away with all the suffering produced by spasm, while there is always a fair prospect if the operation is not put off too long, of the deposit being limited to the part above the artificial opening, and of the good being permanent.

It is true that we have no certain means of knowing the extent of the deposit beforehand; it is true also that the operation is not in itself a cure of the disease, but at any rate, it is a reprieve which gives time for remedies to take effect, and at the worst, it substitutes a comparatively painless death for one of intolerable anguish. It can, too, be performed under the influence of chloroform, so that the idea that it adds in any way to the child's distress is unfounded. Who that has seen the calm, happy face, and watched the tranquil sleep of the child after the operation, who before was struggling, with distorted features and agonised countenance, to get a breath of air, but would feel as I do, that I would have it done in a child of mine for the sake of a painless death, even though I knew for certain that it would not prolong life even for an hour?

One additional remark I have to make with reference to the loss of power, or palsy of various muscles, which frequently follows diphtheria. Almost always there is some impairment of power in the muscles of the throat on which the deposit had taken place, and there is, in consequence, a little difficulty in swallowing for a few days. If this should get worse, food and especially drink sometimes return by the nose, and next there may be a slight squint, and the sight may become weakened, and an uncertain tottering gait; and sometimes for a week or two the child may be unable even to stand. In bad cases there is with these symptoms a general loss of nervous as well as of muscular power, though the child may still be fairly cheerful, and ready to amuse itself as well as it can. This condition may last for many weeks before it passes quite away, and if under the mistaken impression that the limbs will gain strength by exercise, the child is allowed to sit up and encouraged to exert itself, recovery will be delayed much longer; and dangerous weakness or fatal exhaustion may suddenly come on.