2 88 VETERINARY LECTURES 



447. Purpura Hemorrhagica, or Purple Bleeding. — This is 

 an eruptive, non-contagious, febrile affection, most frequently found 

 in the horse, and following in the wake of some debilitating disease, 

 such as catarrhal fever, influenza, strangles, diabetes, etc., or it may 

 arise spontaneously without any previous derangement. It is of 

 more common occurrence in town than in country practice. Symp- 

 toms. — When an animal is evidently on the way to recovery from a 

 severe attack of influenza or some such disease, it may all at once be 

 found with swelled legs, eyelids, nose, and mouth, and patchy swell- 

 ings all over the body, while, on closer examination, dark purple 

 blotches are seen inside the nostrils. The breathing becomes 

 much quicker, and the pulse is small and fast, while there is a 

 yellow discharge from the nostrils. Occasionally the swellings 

 about the head are so large that the breathing is oppressed to such 

 an extent that suffocation is threatened, and tracheotomy must be 

 performed, while the limbs may become so much swollen that the 

 animal can scarcely stir, and has at length to be supported on slings. 

 Treatment. — When first observed, the horse should at once be put in 

 a loose-box, where it can have a plentiful supply of fresh air, and, 

 when necessary, it ought to be put in slings. Milk, linseed jelly, and 

 eggs beaten up in milk may be given, as well as green food and 

 boiled barley, if it has any appetite. All the food must be light and 

 easy to digest. Light laxatives such as 2-ounce doses of hyposul- 

 phite of soda can be given, night and morning, in sloppy mashes or 

 drinking-water ; chlorate of potash in 2-drachm doses every four or 

 six hours (given in drinking-fluids), answers well ; while repeated 

 intravenous injections of adrenalin eases the blood-pressure and 

 diminishes extravasation. But the malady being of such a formidable 

 character, the patient should be placed at once in the care of a 

 veterinary surgeon, as in many difficult cases, by the injection of 

 preparations of iodine in solution into the windpipe, many animals 

 have been saved. 



448. Influenza and Pink-Eye. — These are described under 

 1 Respiration ' (Lecture IX.). 



449. Urticaria, Blaines, Howkes, or Nettie-Rash.— This is 



another blood affection of a non-contagious and non-febrile type, 



