For Whooping Cough

Dissolve a scruple of salts of tartar in a gill of water, put in half a scruple of pulverized cochineal, sweeten it with loaf sugar, give an infant a tea-spoonful of this mixture four times a day, and a child four years old or upwards, a table-spoonful. In some cases the relief is instantaneous.

Another Remedy

Half a pint of honey, half a pint of vinegar, two table-spoonsful of sweet oil stewed together a few minutes; when cold put it in a bottle, and put in a tea-spoonful of laudanum; shake it well, and give a table-spoonful when the cough is troublesome, and a dose just before going to bed. For an infant of six months, a small tea-spoonful is a dose, and for a child of four years, two tea-spoonsful. Where there is not much fever, a little port or claret wine, mixed with sugar and water, and taken with toast broken in it, is beneficial. Children should be taken out riding if possible, and should be well wrapped up.

Source: Domestic Cookery, Useful Receipts, and Hints to Young Housekeepers, Elizabeth E. Lea