Few days back my son completed 5 years. On his birthday he had too much of chocolate and bakery items. After that he said itching sensation in anus part. He has sensation of getting motion but he didn't went after few hours we compelled him to go to rest room, after passing stool also he got that itching. Applied dernadew ointment and setricin 5 ml. Next day he is fine without any problem. Again today evening he has same itching problem. He didn't pass stool after the itching Problem. We again forced him to go for motion. Today applied dermadew ointment. What could be issue? Please give advise