PREVENTION, SYMPTOMS AND TREATMENT 7 



inside of the thighs — and is perhaps due to irritation and infection 

 of the skin by the process. 



Treatment. — In acute acne with much tenderness, heat and 

 swelling, hot fomentations containing borax (3 ii-O i) are indi- 

 cated. 



Acne may perhaps be prevented by avoiding rough and irri- 

 tating harness and by keeping the skin clean under the harness 

 through the use of sulphur soap ; and the lesions can sometimes be 

 aborted by touching them with pure carbolic acid — that is, the papu- 

 lar may be prevented from becoming the pustular form. Sulphur 

 in various forms is remedial. Pustules should be incised, sebum 

 and pus squeezed out, and the after-treatment conducted by the 

 application of dry sulphur or sulphur ointment to the lesions. In 

 chronic cases, Fowler's solution (H., 5 ss; D., 1T|. iii-v twice daily 

 in drinking water) may prove beneficial. 



A boil is but a more severe form of acne (phlegmonous folli- 

 culitis), and the reader is referred to p. 32 for its treatment. 



* 



Actinomycosis — Big Jaw — Lumpy Jaw — Wooden Tongue.* 



This disease is due to a streptothrix (S. actinomyces bovis) 

 or ray fungus, so called because colonies assume rosette or radiate 

 forms. The disease is not directly communicable from animal to 

 animal or from animal to man. It is inoculated into the mucous 

 membrane of the mouth in most cases by means of sharp particles 

 of foodstuff (as awns of barley, spears of oats, thorns of cactus 

 and dried grasses), on which the fungus appears to naturally exist. 

 Conditions in the mouth favoring inflammation or injury of the 

 mucous membrane, as decayed teeth and shedding of the milk teeth, 

 also aid in furnishing a more favorable field for the entrance of 

 the fungus. Most cases occur in young cattle at dentition; 89 % 

 in the last half of the year when hay and grain are fed. Usually 



* The author desires to acknowledge his indetedness to Circular No. 99, U. S. Bureau 

 of Animal Industry, on Actinomycosis. 



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