old elderly scratching arm elbow itchy skin,skin irritation,atopic dermatitis or disorders of nerves and the nervous system,

ache adult allergic arm asian atopic care cause concept damage demyelinating dermatitis discomfort disease diseases disorders dry dryness effects elbow elderly female health hurt illness irritation itchiness itching itchy kidney liver medical medications nerve nerves nervous neurological old older pain problems reactions scratching senior sensations sensitive sensory sick side skin sore symptom system treatment visible woman xerosis