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943. Croup. As this disorder frequently and quickly terminates fatally, recourse should be had to a duly qualified practitioner as soon as possible. The disease lies chiefly in the larynx and bronchial tubes, and is easily recognisable by the sharp, barking sound of the cough. A warm bath and mustard poultice will often tend to give relief. Medicines. Aconitum napellus, in the earlier stages of the disorder, and spongia and Hepar sulphuris, in the more advanced stages, the latter medicine being desirable when the cough is not so violent and the breathing easier. 944. Diarrhoea. The medicines to be used in this disorder are those which are mentioned under colic and bilious attacks. 945. Dysentery Dysentery is somewhat similar to diarrhoea, but the symptoms are more aggravated in character, and the evacuations are chiefly mucus streaked with blood. As a local remedy hot flannels or a stone jar filled with hot water and wrapped in flannel, should be applied to the abdomen. Medicines. Colocynthis and Mercurius in alternation. 946. Dyspepsia Dyspepsia or Indigestion arises from weakness of the digestive organs. Symptoms. Chief among these are habitual costiveness, heartburn and nausea, disinclination to eat, listlessness and weakness, accompanied with fatigue after walking, &c., restlessness and disturbed sleep at night, bad taste in the mouth, with white tongue, especially in the morning, accompanied at times with fulness in the region of the stomach, and flatulence which causes disturbance of the heart. The causes of indigestion are too numerous to be mentioned here, but they may be inferred when it is said that scrupulous attention must be paid to diet (see par. 961); that meals should be taken at regular and not too long intervals; that warm drinks, stimulants, and tobacco should be avoided; that early and regular hours should be kept, with a cold or chilled sponge bath every morning; and that measures should be taken to obtain a fair amount of exercise, and to provide suitable occupation for both body and mind during the day.