Intertrigo. Intertrigo of Chafing. 467 



from the affected part the dried accumulations of sweat, sebum, 

 dust and other matters, remove clay from frog, interdigital space 

 or heels. Rest until the congestion and tenderness subside. 

 Drying applications in the form of dusting powders are usually 

 be.st : zin^ oxide, lycopodium, magnesia oxide, may be dusted in 

 freely after the affected part has been thoroughl)- exposed and 

 dried. In the absence of these use gloss starch, corn starch, 

 farina or white bismuth. To one or other of these may be added 

 a little alum, lead acetate or morphia. The addition of a la^'er 

 of surgeons' cotton is useful, if in a place where it will be re- 

 tained. Of liquid applications the veterinarians white lotion (zinc 

 sulphate and lead acetate, of each i oz. water i qt). is one of the 

 best, being at once sedative and astringent. It ma}^ be ap]:)lied 

 on cotton. Astringent preparations with glycerine are useful 

 but glycerine has the serious drawback of attracting moisture and 

 increasing the secretion when drying is desirable. Carron oil 

 (equal parts of lime water and linseed oil) is most effective and 

 free from this objection. Vaseline alone or medicated with zinc 

 oxide, lead acetate, alum or tannic acid may be resorted to when 

 dusting powders fail. Morphia and camphor have been added 

 when itching is violent. 



In intertrigo of the frog or interdigital space the danger of 

 infection from the floor or road is so great that the demand for 

 antisepsis must overcome other considerations. Calomel freely 

 applied to the surface, previously cleansed and dried, is most suc- 

 cessful. It may be bound in place by a pledget of cotton and 

 bandage. In other cases alum 5 parts, copper sulphate i part, or 

 carbolic acid and tar may be bound to the part. 



