Hello.
Thank you for asking at HCM.
One most important thing I would like to know is whether you itch without hives/skin lesions/urticaria or with them.
If you have hives/urticaria, I would say you are having chronic urticaria. I would suggest you to consult an Allergist who will perform some tests for physical urticaria and suggest some blood tests like total blood count, ESR, serum anti-
thyroglobulin antibodies, anti-nuclear antibodies, anti-thyroperoxidase antibodies and urine & stool examination. Some of these tests are for
autoimmune disorders. Then he can treat accordingly.
But if you are not having skin lesions at all and only itching, I would not think of allergy at first. The causes are many like dry skin, nutritional deficiencies of vitamins & minerals,
diabetes mellitus, thyroid disorders,
chronic liver disease,
chronic kidney disease, etc. So I would suggest you to consult a physician who may suggest you tests like CBC, ESR, blood sugar, SGPT, total proteins including albumin & globluin, urea, creatinnine and urine & stool routine and microscopic examination. Then he can treat you accordingly.
Hope this will be helpful to you.
Wish you the best of the health.
Regards.