Hi, teenage DS had a blackhead - I squeezed it, his skin didn't want to give it up. It no longer has a dark head but is a bump, presumably sebum. it slowly got a bit bigger. I've just called a private dermatologist but they want £200 just to look at it (before doing anything!) so I'm now wondering if a dermatologist isn't the best/only way to go. Do any of you lovely mumsnetters have any ideas where might be good to try. I don't mind spending that, but I may be missing an equally good alternative. Thank you