This section is from the book "Everything About The Dogs", by Alvin George Eberhart. Also available from Amazon: Everything About Dogs.
In a large number of cases - in fact nearly every one - of distemper, rectal abscesses will be found. To those who do not clearly understand the best method of handling them, we make the following suggestions:
Take the dog carefully between the knees and bend the tail sharply upward. This will cause the rectum to project. With the thumb and finger press firmly upon the projection, as if to extract the milk from a cow's teat. Use considefable force. If there is an abscess, this will break it and press out the pus. Be careful that the pus does not fly into the eyes. Repeat this operation every day so long as there is pus. You will find this is a material aid in effecting a cure.
 
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