To protect the nipple during nursing, a glass shield may be used for a day or so, but not long enough for the babe to get accustomed to it, else he will form a habit hard to break. This shield must be taken apart after use, washed and kept in saturated solution of boric acid until the next nursing.

If all these measures fail, the fissure must be touched with a nitrate of silver stick once, or have a 2 per cent solution of nitrate of silver applied night and morning. It may be necessary to take the child from the breast for a day or so, in which case he nurses the other breast and the side with the bad nipple is pumped.

The care of the nipple is highly important since the apprehension and the actual pain of each nursing may prevent sleep, destroy the appetite, and diminish the milk. If begun early, most fissures will heal in twenty-four to forty-eight hours.

Mastitis.—From three to five per cent of lying-in women have mastitis in the European clinics, but the records in America show a much smaller number.

The disease occurs most frequently in blondes and in primiparas. It is most apt to appear during the first two weeks, when the congestion accompanying the new mammary function produces a stasis that favors the growth of germs, which may enter through the abrasion or fissures of the nipple produced by zealous activity of the child’s gums. But it may also occur when the child’s first teeth come and the nipple is again exposed to injury. At times it is impossible to find a plausible excuse for its occurrence.

Mastitis is usually described in three forms: The (a) parenchymatous or glandular type, which affects the substance of the gland or the enveloping connective tissue; in (b) subcutaneous mastitis the connective tissue beneath the skin is attacked; and in (c) the sub-glandular variety, the infection finds a lodging between the gland and the chest wall.

Mastitis is always due to the presence of microorganisms which in many cases gain access to the gland through fissures or abrasions by means of the lymphatics. In other instances the germs may be in the blood and a local stasis may encourage the infection. Still again, they seem to enter through the normal nipple openings.

Symptoms.—The parenchymatous inflammation begins with a chill, and the temperature promptly rises to 102° to 105° F. The pulse is high. The patient complains of headache and thirst. Examination reveals hard, tender nodules in some part of the gland. The skin may or may not be reddened.

If the trouble has begun in the connective tissue, the skin will be diffusely reddened, the nodule ill-defined, the temperature will rise gradually and the chill may be absent.

Treatment.—The breast is put at rest. No tight binder is applied, no breast pump, no massage. No heat is allowable.