Sir/Mam The symptoms that you are describing may be due to ANAL FISSURE that is a small breach in the continuity of skin at the anal verge.. The most important cause of the same is constipation leading to hard stools and thus leading in ulceration The treatment of the same are as under 1.High fiber diet 2.Plenty of fluids 3.Oint Nitroglycerine to be applied locally before and after defecation( After application lie down for an hour to prevent headache) 4. Oint Annovate may also be used if above is not available or headache is intolerable 5. Sitz bath(Sitting over container containing warm water for 30 minutes twice or thrice daily) 6.Stool softener like Syp lactulose 3 tsf thrice daily