Beyond the application of mustard, turpentine, or hot water, blistering agents are not much employed in the treatment of canine ailments.

As a remedy for external use in diseases of the bronchial tubes and lungs, mustard has not, in the author's opinion, any superior.

It can be used either as a paste applied directly to the skin, or in combination with boiled linseed poultices.

In long-haired dogs it is advisable to clip off some of the hair, so as to facilitate the full counter-irritant properties of the mustard.

It requires very little rubbing in, and it is not advisable to repeat the application, unless specially called for.