52 BOVINE PATHOLOGY. 



but the effect is evanescent. Occasionally free scarifica- 

 tions allow the escape of excessive extravasated material, 

 which, by pressure, tends to interfere with favorable pro- 

 gress towards resolution. For the removal of effused 

 material pressure and stimulation have been found beneficial. 

 The effects of pressure are very gradual, and some mechani- 

 cal appliance is necessary; the more convenient planof stimu- 

 lation is, therefore, generally adopted, compounds of iodine, 

 especially the biniodide of mercury, being most useful. The 

 friction in application also tends to promote absorption. 



When ulceration is present the treatment must be 

 regulated according to the condition of the sores. Often 

 tonics and stimulants must be administered internally. 

 Indolent ulcers require local stimulation ; callous, the 

 application of caustics, whereby a fresh granulative surface 

 will be exposed ; inflamed, local sedatives ; inflammatory 

 and specific, attention to constitutional conditions ; phage- 

 denic, powerful caustics, followed by poultices. 



When SuppuEATiON has occurred, free exit must be given 

 to the pus by means of a depending orifice, but the abscess 

 must not be opened until fully matured. Purulent infil- 

 trations should be relieved by incision. The system must 

 be well supported by nourishing food and stimulant tonics 

 in the meanwhile, and the animal be clothed carefully, for 

 suppuration is an exhausting process, and causes febrile 

 symptoms, rigors, debility, and fulness and rapidity of the 

 pulse. Tonics will be favorable to the constructive pro- 

 cesses by which the abscess cavity will be filled up ; 

 locally, carbolic dressings are most useful. 



MoETiPiCATiON necessitates support of the strength of 

 the patient, for not only is the system severely taxed in 

 throwing off the slough, but also gangrenous fluids tend 

 to enter the circulating current, and give rise to an asthenic 

 character of subsequent changes. Stimulants and tonics 

 require to be administered freely internally, while poul- 

 tices such as Cataplasma Calcis Chlor., or Catap. Fermenti, 

 promote the separation of the slough. We have already 

 indicated that surgical removal of the diseased part is 

 often necessary. 



