Hi dear, it seems you have developed fissure in ano. ( a cut in anal canal due to passage of hard stool. ) apply diltigesic ointment 2% three times a day after passing stool. Take Dabur nature care isabgol 2 teaspoon in on be glass of Luke warm water after dinner daily for 15 days.
Next Steps
Do sitz bath 3 times a day for 15 min. each