Thank you for the query.
First of all you should know that the fissure which lasts for 6 months is not the acute one. This is severe fissure and such fissures can be treated with surgery.
However if you havent tried Anobliss before you may find it very helpful. This cream contains calcium channels blocker and Lidocaine
. This cream should relax your rectal muscle and can make your fissure healed. But it might be hard with severe fissure.
It is also very important in fissure treatment to avoid constipations, make your stool soft and do not push hard on stool. Hot baths with Quercus Cortex
can be helpful as well. You can also use Xylocain gel before bowel movement.
If such treated fissure wont get healed in a week, the only permanent solution can be surgery.
Hope this will help.