i HAVE A RASH ON THE OUTER SKIN OF MY VERGINA. iT IS ONLY ON ONE SIDE AND CLOSEST TO THE BOTTOM, I HAVE TRIED EVERYTHING TO PUT ON IT AND NOTHING IS WORKING. SOMETIMES I DON'T KNOW IT IS THERE AND OTHER TIMES IT HAS A STING TO AN ITCH. I'M 65 YRS OLD. IS THIS COMMON?