Mystery

So I gave birth almost 8 months ago and initially my fissure was really bad but now it’s on and off. What I have noticed is if I reduce my dose of laxative the stool get even slightly hard and I get discomfort and pain to a certain extent. How do I get rid of this completely. Some people say that after a fissure turns chronic local treatment is the only way. I’m thinking these people are right?? I don’t know what’s happening