I have itching at groin, buttock and under arm areas. I get this due to allergic conditiocan. I take half a tablet piriton at night in order for me to control morning sneeze, itchy eyes and runny noes. What can I take. Doctor prescribed Benicide 50 mg X 2 tablets at evening times for five days. Now it second day minor improvement seen. Any reason for this? And any precaution and medicine please?