hello and welcome to health care magic.
extensive itching in the aged has many causes and noe of them is s dermatitis
please do try to understand that your skin will never get rejected.
s dermatitis is common in elderly and its primary cause is lack of hydration and blocking of pores of sebaceous ducts. a good bath with a milk soap, and checking of your dental health, and chest condition.
try and apply ketoconazole
cream to the skin after a bath.
thank you and feel free to contact.