Just like our eyes need vitamin A and our teeth requires calcium. Similarly, our skin requires Vitamin E. Deficiency of vitamin E causes itchiness and a person may start scratching the affected areas in public. Doctors, generally prescribe anti-allergic medicines like avil etc. Although, these medicines are available at very low cost and gives huge relief. But the only disadvantage is that it makes the patient feel sleepy. There is a unani treatment that may help you with this problem. Take 2-3 pinches of edible soda and add it into a cup of water for 7-15 days and your itchiness will be gone.