152 DISEASES OF THE HOG. 



tents apply a little oxide of zinc ointment or a sim- 

 ple cerate to protect the sore from the air. 



RUPIA. 



This is a disease which resembles pemphigus, 

 but the elevations are flatter and contain a dark 

 colored fluid; they are followed by a thick scab, 

 easily separated and soon removed, or sometimes 

 by ulcers. It is usually confounded with pemphi- 

 gus, bu^as the treatment is about the same a mis- 

 take will be of no importance. 



ACNE. 



This is a pustular disease sometimes seen on the 

 udder of the sow and inside of the thighs. It con- 

 sists of small pimples which form on the skin; some 

 of the larger ones may contain a little matter. In 

 a week or ten da^^s they begin to dry up, leaving a 

 brown scab or mark. In some cases they become 

 hard and of a reddish color and may remain in that 

 condition for months. They make their appear- 

 ance without causing any fever or itching. It does 

 not seem to be contagious, as I have known a case 

 in which the sow was nursing her pigs and none 

 of them became affected with it 



Treatment : Give a mild dose of salts ; follow this 

 with syrup iodide of iron or five drops of Donovan's 

 solution of arsenic three times a day in the food. 

 Kub the affected parts with glycerine one ounce, 

 tannic acid one dram, water one ounce. In chronic 

 cases rub on a little soap liniment twice a day. If 

 the pustules should suppurate and become sores 



