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Earache is due usually not to neuralgia of the ear, but to a true inflammation of the middle ear, which either subsides or results in the accumulation of inflammatory products until the drum is ruptured and discharge occurs from the external canal. The trouble commonly originates from an extension of catarrhal disease of the nose or throat; the germs which are responsible for these disorders finding their way into the Eustachian tubes, and thus into the middle ear. Any source of chronic catarrh of the nose or throat, as enlarged and diseased tonsils, adenoids in children, or nasal obstruction, favor the growth of germs and the occurrence of frequent attacks of acute catarrh or “colds.” The grippe has been the most fruitful cause of middle ear inflammation and earache in recent years. Any act which forces up fluid or secretions from the back of the nose into the Eustachian tubes (see section on Deafness) and thus into the middle ear, is apt to set up inflammation there, either through the introduction of germs, or owing to the mechanical injury sustained. Thus the use of the nasal douche, the act of sniffing water into the nose, or blowing the nose violently when there is secretion or fluid in the back of the nose, or the employment of the post nasal syringe are one and all attended with this danger. Swimming on the back, diving, or surf bathing also endangers the ear, as cold water is forcibly driven not only into the external auditory canal, but, what is more frequently a source of damage, into the Eustachian tubes through the medium of the nose or throat. In this case the plugging of the nose with cotton would be of more value than the external canal, as is commonly practiced. If water has entered the Eustachian tube, blowing the nose and choking merely aggravate the trouble. The wiser plan is to do nothing but trust that the water will drain out, and if pain ensues treat it as recommended below for earache.

There are six muscles attached to the outside of the eyeball which pull it in various directions, and so enable each eye to be directed upon a common point, otherwise objects will appear double. Weakness of these muscles or insufficiency, especially of those required to direct the eyes inward for near work, may lead to symptoms of eye strain. When reading, for example, the muscles which pull the eye inward soon grow tired and relax, allowing the opposing muscles to pull the eye outward so that the eyes are no longer directed toward a common point, and two images may be perceived or, more frequently, they become fused together producing a general blurring on the page. Then by a new effort of will the internal muscles pull the eyes into line again, only to have the performance repeated, all of which entails a great strain upon the nervous system, and may lead to permanent squint, as has been pointed out. In addition to these symptoms caused by weakness of the eye muscles seeing double, blurred vision, and want of endurance for close work there are others which are common to eye strain in general, as headache, nausea, etc., described in the following paragraph.

Notwithstanding the frequency with which one encounters allusions to gout in English literature, it is unquestionably a rare disease in the United States. In the Massachusetts General Hospital there were, among 28,000 patients admitted in the last ten years, but four cases of gout. This is not an altogether fair criterion, as patients with gout are not generally of the class who seek hospitals, nor is the disease one of those which would be most likely to lead one into a hospital. Still, the experience of physicians in private practice substantiates the view of the rarity of gout in this country.

This variety of rheumatism is quite distinct from the other forms, being in all probability due to some special germ. It occurs in temperate climates during the fall, winter, and spring less often in summer. Persons more frequently suffer between the ages of ten and forty years. It is rare in infants; their pain and swelling of the limbs can be attributed more often to scurvy, or to surgical disease with abscess of joint or bone. Exposure to cold and damp, in persons insufficiently fed, fatigued, or overworked, is the most common exciting cause.

Chafing occurs when two opposing skin surfaces rub together and are irritated by sweat, as in the armpits, under the breasts and beneath overlapping parts of the belly of fat people, and between the thighs and buttocks. The same result is caused by the irritation induced by discharges constantly running over the skin, as that seen in infants, due to the presence of urine and bowel discharges, and that irritation which arises from saliva when the lips are frequently licked. The latter condition of the lips is commonly called chapping, but it is proper to consider chafing and chapping together as the morbid state of the skin, and the treatment is the same for both.

The milder sore throat is commonly the beginning of an ordinary cold, although sometimes it is caused by digestive disorders. Exposure to cold and wet is, however, the most frequent source of this form of sore throat. Soreness, dryness, and tickling first call attention to the trouble, together with a feeling of chilliness and, perhaps, slight fever. There may be some stiffness and soreness about the neck, owing to swelling of the glands. If the back of the tongue is held down by a spoon handle, the throat will be seen to be generally reddened, including the back, the bands at the side forming the entrance to the throat at the back of the mouth, and the uvula or small, soft body hanging down from the middle of the soft palate at the very back of the roof of the mouth. The tonsils are not large and red nor covered with white dots, as in tonsilitis. Neither is there much pain in swallowing. The surface of the throat is first dry, glistening, and streaked with stringy, sticky mucus.

This is a condition caused by inequality of the outer surface of the front of the eyeball, and rarely by a similar defect in the surfaces of the lens. The curvature of the eyeball in the astigmatic eye is greater in one meridian than in the opposite. In other words, the front of the eyeball is not regularly spherical, but bulges out along a certain line or meridian, while the curvature is flattened or normal in the other meridian. For instance, if two imaginary lines were drawn, one vertically, and the other horizontally across the front of the eyeball intersecting in the center of the pupil, they would represent the principal meridians, the vertical and the horizontal. As a rule the meridian of greatest curvature is approximately vertical, and that of least curvature is at right angles to it, or horizontal.

Piles consist of enlarged, and often inflamed, veins in the rectum, or lower part of the bowel.

Itching is not a distinct disease by itself, but a symptom or sign of other skin or general disorders. Occasionally it must be treated as if it were a separate disease, as when it occurs about the entrance to the bowel ( anus ), or to the external female sexual parts ( vulva ), or attacks the skin generally, and is not accompanied by any skin eruption except that caused by scratching, and the cause be unascertainable. Itching, without apparent cause, may be due to parasites, as lice and fleas, and this must always be kept in mind; although debilitated states of the body and certain diseases, as gout and diabetes, are sometimes the source. Commonly, itching is caused by one of the many recognized skin diseases, and is accompanied by an eruption characteristic of the particular disorder existing, and special treatment by an expert, directed to remedy this condition, is the only reasonable way to relieve the itching and cure the trouble.

This consists of an enlargement of the veins in the scrotum above the testicle of the male, on the left side in most cases. The large veins feel more like a bunch of earthworms than anything else. If they cause no discomfort they may be entirely neglected and are not of the slightest consequence. Even when they produce trouble it is chiefly imaginary, in most instances, since they are a common source of worry in young men in case of any irregularities in the sexual functions. Advantage is taken of this fact by quacks, who find it for their profit to advertise all sorts of horrible and impossible results of the condition. The testicle on the diseased side may become smaller than its fellow, but in few cases does any serious consequence result from varicocele. Pain in the hollow of the back may be the only symptom of varicocele in cases where there are any symptoms. A dragging pain in the groin, a pain in the testicles and about the rectum and in the bladder may cause complaint.