This disease is of rare occurrence in cattle. In it, the mucous membrane
lining the larynx is in a very irritable condition; the least pressure
upon the parts affected causes intensely excruciating pain; the
respiration becomes quick, painful, and laborious; the animal often
appears to be hungry, yet does not eat much, in consequence of the pain
occasioned by the act of swallowing.
_Treatment._--Apply to the throat externally strong mustard, mixed, with
equal parts of aqua ammonia and water, to a thin paste, every hour,
until it produces an effect upon the skin; sponging the parts each time
with warm water before applying the mustard. The animal should not be
bled. Give upon the tongue, or in drink, half-drachm doses of nitrate of
potassa, every three or four hours, until relief is obtained. If
suffocation threatens, the operation of tracheotomy is the only resort.
[Illustration: AN ABERDEENSHIRE POLLED BULL.]
Cloths saturated with cold water, wrapped around the neck so as to cover
the larynx, frequently afford relief. A purgative will also be found
useful.