The bromides have proved valuable in this disorder, both when taken internally and when applied to the inflamed parts. Dr. Caro uses a spray containing 1 dr. to the ounce, and finds it lessen capillary congestion, and when the cough is dry it aids the expectoration of membrane (Medical Times, i., 1874, and i., 1876, p. 588). Dr. Post recommends a solution of the same strength with 20 min. of bromine, and gives 10 drops every hour to a child of three years.