Hi,
You are having
severe itching on upper extrimities and neck and face.
Otherwise you are healthy as you said.
There are many causes of generalised itching.
It may be due to xerosis..i.e. dry skin or atopy.
You should go for blood testing to rule out internal diseases..like DM,anaemia,
connective tissue diseases,
thyroid dysfunction and other endocrinal diseases, renal and hepatic diseases,malignacies , lymphomas and leukamia..etc
If no cause is found, then it may be due to psychological factors..anxiety, psychosis or
depression...or idiopathic i. e. without cause.
You avoid tension and worries.
Take dettol liquid water bath.
Moisturise the skin after bath.
Avoid woolen clothes.
Antihistaminics and steroids in tappering dose would be helpful.
You
consult dermatologist for firm doagnosis and treatment.
I hope you got my answer.
Thanks.
Dr. Ilyas Patel MD