5l6 Veterinary Medicine. 



recovery in about 15 days, and by the iniinunity on a subsequent 

 inoculation. It is coninninicable to cattle and to man, producing 

 the characteristic large umbilicated vesicle and scab. 



Treatment. The first consideration is to remove the causes of 

 local irritation and infection, give a clean sweet stall, with dry 

 floor, and allow no contact with putrid liquids, mud, cold water, 

 melting snow or other irritant. If exercise is needful to obviate 

 stocking of the legs give it on dry clean ground. 



If inflammation runs high with fever and costiveness a laxa- 

 tive will be valuable and it may be well to follow this in some 

 cases with cooling diuretics. When the animal has been on a 

 heavy grain ration this should be largely cut down in keeping 

 with enforced idleness, or restricted work. If on the other hand 

 condition is low, and the discharge profuse a more generous ra- 

 tion may be desirable. 



Local treatment is essentially soothing and antiphlogistic, and 

 in view of the infection should be antiseptic. White lotion 

 (acetate of lead and sulphate of zinc of each }-^ oz., water 

 I quart) has been long used with fair success, for although lead 

 sulphate is thrown down, it is in part freed again through contact 

 with the exudate. It will be materially improved by the addition 

 of I dr. carbolic acid, creolin, ly.sol or chloronaphtholeum or by 

 some other antiseptic. Lead acetate alone with an antiseptic is 

 an excellent substitute. In mild cases the surface may be wet 

 with the lotion .several times a day : while in .severe ones the 

 lotion may be applied on a bandage kept constantly wet. 

 When secretion is well established it may be better to use dry appli- 

 cations, as calomel ; .salicyclic acid 10 parts, with iodine 10 parts ; 

 calomel and lamp black ; carbolated oxide of zinc or burned alUm, 

 salol, etc. After washing and drying the skin, dust this freely 

 even into the deepest wrinkles and cover with cotton and bandage. 

 Dress twice daily. For very foetid cases, Robertson recommends 

 zinc chloride i oz. in i qt. water with the addition of glycerine 

 and phenol, and again a saturated solution of copper sulphate 

 with carbolized glycerine. For profuse secretion after the sub- 

 sidence of active inflammation Renal highly rcommends wood tar 

 with 5 to 10 drops of sulphuric acid to the ounce. Under these 

 circumstances a powder of gloss .starch 5 ozs. with iodine ^ oz. 

 may be employed twice daily. Or again, i oz. each of carbolic 



