. A Reference handbook of the medical sciences embracing the entire range of scientific and practical medicine and allied science . sis, or syphilis. From eczema it isdistinguished by its sharp outline and angular configura-tion, by its color au<l the waxy appearance of its roof,and more especially by a stiuly of the outlying psoriasis it differs in showing no tendency to clearup in the centre, in its location upon flexor instead ofextensor surfaces, in its comparatively slight scaling, andin its color. From a superficial tubercular syphilide,which might be suggested by the ge


. A Reference handbook of the medical sciences embracing the entire range of scientific and practical medicine and allied science . sis, or syphilis. From eczema it isdistinguished by its sharp outline and angular configura-tion, by its color au<l the waxy appearance of its roof,and more especially by a stiuly of the outlying psoriasis it differs in showing no tendency to clearup in the centre, in its location upon flexor instead ofextensor surfaces, in its comparatively slight scaling, andin its color. From a superficial tubercular syphilide,which might be suggested by the general arrangementand color ot a patch of lichen planus, the latter diseaseis to be distinguished by its failure to leave scars or toclear up in the centre, by its unresponsiveness to specifictreatment, and by the absence of other signs of syphilis. Treatment.—TXie treatment of lichen planus is very 506 REFERENCE HANDBOOK OF THE IVIEDICAL SCIENCES. Lichen,lilolieu. unsatisfactory, since we do not know its cause. An)error of health, especially any nervous derangement, mustreceive especial attention. Digestive disturbances and. Fui. —LlcLieu riaiuis. {A. K. Robinson.) sexual disorders should be set right. But these sugges-tions are equally applicable to the treatment of all dis-eases of the skin. In the beginning of lichen planus,when the disease is acute, alkaline diuretics, and soothingapplications, such as lotio nigra, calamine lotion, andLassars paste, will modify its intensity. In chroniccases, arsenic, pushed to the limit of tolerance, and aide<lby stimulating applications, such as green soap, tar (10to 20 per cent.), carbolic acid (5 per cent.), and bichlorideof mercury ( per cent.), will hasten the disappearanceof LiciiEX UrBER —The second diseasementioned aliove, lichen ruber acuminatus, was de-scribed by Heljra as a necesairily fatal affection. Fur-ther observation has established the fact that a milderform exists, whic


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