Fiber is good solution for constipation but I cannot eat it for lifetime. Is there any permanent solution which will be helpfull in constipation?

Fluids and. Accepting the fact that you have to maintain good eating habits and drinking habits for your bowels to work the way they were intended.
Fiber health. It sounds as though fiber has helped in your constipation as it normally does. It is a real cornerstone in consistent bowel habits--i would give in and research the internet for good sources of fiber. I simply suggest fibercon or metamucil pills which are easy to swallow. This chronic medication should not be considered a chronic laxative and put your colon at a worry for not moving without.