Hi welcome to the health care magic Here without clinical examination it is difficult to rule out nature of lesion... If you post photo than comment will be easier.. It can be scabies like infective condition in which five percent permethrine solution is being used.. If this is allergic inflammation than than Allegra drug prescribed... Your drug history and jaundice like liver history also should be ruled out.. If diagnosis is in doubt after examination than skin biopsy can be done and sent for histopathological examination Take care Consult dermatologist for examination and accordingly get prescription...