Proctal or Anal itch within a month

[Olga]

Good afternoon the DOCTOR. Help or assist to understand please that at me. I a month am am disturbed with a proctal or an anal itch. Has gone to the doctor thought, that worms. Has handed over all analyses. But have found nothing. Vrach has allowed all to accept peerly PIRANTEL, but the itch does not pass or take place. Has passed or has taken place two weeks and has accepted repeatedly PIRANTEL. But the itch is present. Gemoroja is not present, nothing hurts. SIMPLY AWFUL, BESPOKOJASHCHIU the ITCH.
In advance to you I shall be grateful.