I took albendazole tablet for two days. But still I have the itchy feeling. Wassup?

Time. It isn't usually the first option for pinworms but it is usually effective in killing them. The problem is that your body can continue to react to the dead worms and/or remaining inflammation. It can take about a week (sometimes 2) for the itching to stop. If it hasn't stopped by then and you never actually saw a worm, then it's possible there was another cause.