Chronic cough is sometimes a consequence of a violent attack of catarrh or strangles, especially when there has been considerable soreness and inflammation of the throat, extending, in some degree, perhaps, to the larynx. Roaring often originates in the same cause. I have known an obstinate chronic cough cured by drenches composed of oxymel, or a syrup made with treacle and vinegar; also by a decoction of garlic with linseed oil. Barbadoes tar and oil, with balsam of sulphur, have also been employed as remedies for cough. It is not improbable that these drenches, by stimulating the throat, may improve the secretion of the mucous membrane of the larynx, or render it less irritable. Blistering the throat externally may also be of use. In the human subject, gargles, made of infusion of Cayenne pepper, have been employed in hoarseness, and a syrup made from a decoction of horse-radish; with a view, probably, of improving the mucous secretion of the larynx. Opium will frequently put a stop to chronic cough for a day or two; but its effect, I believe, is never permanent. This seems to prove, however, that the cough depends, in some measure, on a morbid sensibility of the larynx. REMEDIES. COUGH BALL. No. 1. Gum ammoniac 2 or 3 drs. Powdered squills 1 dr. Camphor 1 dr. Ginger 1 dr. Castile soap 2 drs. Oil of aniseed 20 drops. Syrup and flour enough to form the ball. No. 2. Strained turpentine 8 oz. Yellow resin 4 oz. Olive oil 2 oz. Hard soap 8 oz. Put these in a pan over a slow fire, and, when perfectly melted, stir in of powdered ginger six ounces; allspice, powdered, six ounces; liquorice powder, or linseed powder, enough to form a mass fit for making balls. The dose, from one and a half to two ounces, to be given for two or three successive mornings, or until it acts as a diuretic. When a horse, affected with cough, becomes costive, a clyster may be thrown up; or he may be kept chiefly on green food, or bran mashes, for a few days. I have observed, in some cases, that the cough-ball has been more efficacious when preceded by a mild purgative with a drachm of calomel. The following powder has sometimes been found a good remedy for coughs, especially when the horse’s diet and exercise have been carefully attended to; and in cases where the cough has appeared to be confined to the larynx the following drench has done good. _Vide_ BLAINE.