Talk to Gastroenterologist on Anal Pain While Passing Stool

For the past 1 year I have had anal pain when passing stool, sometimes it's mild and sometimes it's too much. I continue to have pain/discomfort throughout the day sometimes (specially when sitting), there is itching sometimes as well (earlier at the start there was too much itching which would become worse after passing stool). I have not had any blood while passing stool to date and there is nothing visible on the outside/edge of anus. I have used Luzy tablets (1 at night) for stool softening which works sometimes only. Please suggest treatment.