[ ] Hi it seems you have developed fissure in ano. ( a cut in anal canal due to passage of hard stool. ). You need to take laxative to soften the stool so that to pass easily without hurting the area.You need to do sitz bath( Sitting in hot water tub. It takes time to heal. Mostly can be managed with non surgical approach. There are certain medicines to relax the sphincter which aids in healing of fissure. Feel free to ask any further quary.

Sit in a basin on warm water for about 15 mins twice a day. This will help bring the pain down. Drink lots of water(10 glasses a day). Increase your fiber intake ( fruits vegetables or over the counter fiber supplements like isabgol). Its important to drink lots of water when taking additional fiber. Use an Indian closet if available. If not use a low stool to put up your legs on a European toilet to simulate an Indian one. The angle between your body and thighs should b3 about 35 degrees.