BLOOD IN STOOL. The best solution plz.

I have constipation past 1 year but recently(past 4 months) consulted specialist due to blood in stool and pain while passing stool, pain remain some how about 5min, he done sigmoidoscopy & said u have fissure they given their own prepared medicines, some how for 1 month it's k not fully, every time i go for consultation he gives the same medicines just say continue with the same medicines it will cure if not den will see further. It's very difficult to pass stool especially start stool is very hard, Sometimes I have to sit in toilet for 30min to pass start stool(even while  taking their own prepared medicines) and it's that much harder, due to hard stool I am getting lower abdomen pain. One of the doctor suggested in online take isabgol before bed time and apply diltigesic 2% gel 3 times a day but I feel better than before but still din't get rid of hard stool fully and blood in stool. Hello doctors PLEASE help me with the best SOLUTION PLZ... ... ... ... ... ... ... ... ... ... ... .