<prompt> A most characteristic feature of atopic dermatitis is -Extreme pruritusDenny Morgan foldsLichenificationRash  <response>: Ans. is a i.e., Extreme pruritus Itching is severe and primary in atopic eczema, provoking a severe urge to scratch; atopic eczema is one of the most itchy disorders. It is an itch that rashes not just a rash that itches. -Venkatram 