I want to clarify one thing that I have to wipe it till the poop no more remains on my anus and there would be no problem if the smell and color remains right? And what while wiping it, it gets little spread around anus on skin? If i wipe that poop also with tissue, then that skin will also become paak or , this cloth or tissue can be used only for poop on anus ?

You can read namaz after that cleaning your self with that method. When u get water wash your self