I think the answer to removing impurities is surgery.

I want to remove blemishes on my face and body. I'm worried because I still have a couple of pimple marks on my forehead and other areas where I used to have them. I also have a few freckles and blemishes on my body. They're either in places that aren't easily visible or are small, so I'm unsure what to do. I really want to get rid of blemishes because I hate them so much. They've been there for a really long time. What treatments are available to remove blemishes?

Can oil stains on arms be removed with a spot remover?