MEDICINAL TREATMENT 209 
otherwise, it may become advisable to apply a special 
leather cap to prevent such injury (see Fig. 28). 
Suppurations.—The suppurations which may on rare 
occasions appear during the course of an attack of dis- 
temper are conditions which must be treated surgically, 
and unless they assume alarming proportions, they are 
usually readily amenable to treatment. : 
In the latter event, however, we may confer great 
benefit by the subcutaneous injection of nuclein ‘daily 
Fic. 28.—LEATHER CaP FOR PROTECTING THE EARs. 
The cap may also be made of calico. 
for several days, or may resort to bacterin treatment. 
For this a bacterin made from cultures of Staphylococcus 
albus and aureus and streptococcus (all of canine origin) 
is used. Five or six doses of increasing strength 
are inoculated subcutaneously in the hairless region of 
the abdomen or inside the thigh, at intervals of three 
or four days. 
SERO-THERAPY 
The possibilities of active immunisation have already 
been discussed under “ Prophylaxis,” and mention of 
passive immunisation or antitoxic treatment has been 
: af 
