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 tines a day after passing stool. Take Dabur nature care isabgol 2 teaspoon in on be glad of Luke warm water after dinner daily for 15 days.
Next Steps
Do sitz bath 3 times a day ( sitting in warm water tub for three times a day)