Hi, you are having itching on left hand and fore arm.
You are having pain on left side of the body upper back and upto buttock.
Itching may be due to irritation,allergy
or some internal disease.
Pain may be due to infection,renal or ureteric stone or some neurological disease.
For finding out the cause of pain and itching you should consult physician and dermatologist
and radiological investigation may give some clue for perfect diagnosis.
And accordingly you may be given treatment.
I hope you will recover fast with the help of physician and dermatologist.
Dr. Ilyas Patel MD