I was suffering from a lot of pain after passing the stool. 
I endured this horrible pain for over an year.
But 5 months ago, I visited a doctor and he diagnosed (visual inspection) the problem to be of Chronic Fissure.
He gave me a laxative, some antibiotics and anobliss cream and told me to take these for a month.
So here I'm, after 5 months and the pain is still there after passing the stool. and it lasts for many hours the whole day.
After applying the anobliss cream, the pain goes away for a couple of days, but starts again after 3-4 days.
So I guess the fissure is recurring again and again.

I'm 30 years old obese male, always under stress due to various reasons. And this fissure pain is making it worse.
I drink a lot of water (3.5 liter a day)
I take duphalac syrup as well as husk every alternate day, but I still pass hard stools sometimes.
I'm not highly constipated, because I always have atleast one bowel movement every day.
Never in my life of 30 years a day has passed without me having a bowel movement.
So what could be the reason of hard stool?

Most importantly, what am I supposed to do now?
Undergo a lateral sphincterotomy or are there any other magical, non surgical options?

Please help me guys/docs.