Anal Fissure and Fistula
"I&#039;ve been on Rectiv for 2 weeks alongside an initial 10-day course of Cipro for a fistula. The Rectiv does cause an immediate headache within minutes of use, but after a few days it goes away, or you get used to it. 

I did notice relief of pain and swelling for a while until a sudden return of the pain, fistula and swelling! For no apparent reason and after no sudden changes in diet! Seeing my doctor tomorrow to try and determine another angle."