19-year-old man presents with dry, itchy skin and O/E erythematous, lichenified plaques in the popliteal fossae, most likely diagnos?A 30-year-old stressed out medical student presents toyour clinic with a worsening painful rash on one side of
her chest.She is up-to-date on her vaccinations because of medical school and complains that this
rash is interfering with studying for the upcoming final block of examinations Physical
examination demonstrates a linear group of vesicles with erythema on
her left chest following a dermatomal Pattern.She denies any prior spots like this and has no other medical problems.