HI Well come to HCM This could be hypersensitivity reaction and if I would be treating doctor of this case then I would treat this case with the following medicine 1) Tab Mometasone cream 2) Moisturizing cream ( lactic acid, urea, paraffin, ) 3) Hydroxyzine 10 mg three times in day one thing should be kept in my that all the skin manifestation demands the clinical observation and this is the only method for diagnosis this is kind of art of looking the lesion, if this regime fails to response then clinical observation is must, take care.