I think of what the makes, that white background around my HA.. It really annoys me.. I tried with the but nothing different. :c Or there aren't any ways? :/

You could try to use the under the latex skin, so you don't need the whiteout or the vanishing cream. You could wear a background, too. But if you want to get the effect of the whiteout without the white background, I think this is not possible.

Nope, the white is a cover-up. It hides what is underneath, but what is underneath is still there. If you have a zombie base, you can hide it, but it will ALWAYS be there, there's nothing that takes it away. There are only cover-ups.