BLISTERS OR VESICANTS 645 



BLISTERS OR VESICANTS 



Blisters are applications which inflame the skin, and produce a secre- 

 tion of serum between the cutis and cuticle, by which the latter is raised in 

 the form of small bladders ; but in consequence of the presence of the hair, 

 these are imj^erfectly seen in the horse. They consist- of two kinds — 

 one, used for the sake of counter-irritation, by which the original disease is 

 lessened, in consequence of the establishment of this in-itation at a short 

 distance from it ; the other, commonly called " sweating " in veterinary 

 surgery, by which a discharge is obtained from the vessels of the part itself, 

 which are in that way relieved and unloaded : there is also a subsequent 

 process of absorption in consequence of the peculiar stimulus applied. 



37. Mild Blister Ointment (Coiinter-Iruitant)— 



Vaseline 4 ounces. 



Veiiico Turpentine 1 ounce. 



Powdered Cautliavides 6 draclmis. 



]\Iix, and spread. 



38. Stronger Blister Ointment (Counter-Irritant)— 



Spirit of Turpentine 1 ounce. 



Suliiliuric Acid, by measure 2 drachms. 



Mix carefully in an open place, and add — 



Hog's lard 4 ounces 



Powdered Cantharides 1 ounce. 



Mix, and spread. 



39. Very Strong Blister (Counter-Irritant) — 



Strong Mercurial Ointment 4 ounces. 



Oil of Origanum h ounce. 



Finely-powdered Eupliorbium 3 drachms. 



Powdered Cantharides J ounce. 



Mix, and spread. 



40. Rapidly acting Blister (Counter-Irritant) — 



Best Flour of Mustard 8 ounces. 



JIade into a paste with water. 



Add Oil of Turpentine 2 ounces. 



Strong Liquor of Ammonia 1 ounce. 



This is to be well rubbed into the chest, belly, or back, in cases of acute 

 inflammation. 



41. Biniodide of Mercury 1 part. 



Lard or Vaseline 8 to 16 parts. 



The last-named agent has almost superseded all the others, especially 

 •when applied as a remedy for bony growths, as splint, sidebone, ringbone, 

 and spavin. The strength or proportion to be used is a matter of judgment, 

 depending upon a variety of circumstances, as breed, thickness of skin, 

 degree of ossification, and recent or chronic nature of the malady. 



42. Liquid Sweating Blisters — 



Cantharides 1 ounce. 



S]iirit of Turpentine 2 ounct;s. 



ISIethylated Spirit of Wine 1 pint. 



Mix, and digest for a fortnight. Then strain. 



4-3. Powdered Cantharides 1 ounce. 



Commercial Pyroligneous Acid 1 pint. 



Mix, and digest for a fortnight. Then strain. 



