What Is The Treatment For Koebner's Phenomenon And Dandruff?

hi,i am a lady doctor currently working as a duty doctor in a private hospital since 2 years.i have been tested positive for mantoux.i have noticed koebner's phenomenon on my skin and excessive dandruff since past five years and have positive family history for psoriasis as well as allergic bronchitis.i have no respiratory symptoms suggestive of koch's disease.is it possible that predisposition to psoriasis or koebner's phenomenon can lead to a positive ppd?how do i confirm this?