Talk to General Physician on Itching In Anus

I started having itching in my anus 2 weeks ago it lasted around two days.First day was intense. Then after 3 to 4 days it totally ended but i had a lil sensation that my anus is sensitive at that time. 4 to 5 days passed still same condition than my brother checked it and we realized that I had a very little scratch on my anas like a cut that can happen on a normal skin with mail or something. It was like that. Today I tried to see it but couldnt find it but I feel like i have redness on my anus and Im having itching today i dont know whats the reason because I cant see anything properly.