This section is from the book "Sporting Dogs. Their Points And Management In Health, And Disease", by Frank Townend Barton. Also available from Amazon: Sporting Dogs; Their Points and Management in Health and Disease.
The passage of the ear is reddened and causes the dog to rub his sore ear, or even cry from the pain. Very frequently this condition is accompanied by a fetid discharge ; if so, it is spoken of as internal canker of ear. A little cooling lotion, such as a couple of teaspoonfuls of Goulard, in eight ounces of water, applied night and morning, will usually suffice to cure this complaint. At same time give a dose of purgative medicine.