The tip is more like a needle, but the front a small knife (is hollow). I use it after showering or other softening the skin by heat / steam in combination with the Komedonenheber. I find these devices easier to handle and more hygienic than fingers. One should, however this really always clean and disinfect, otherwise can form new pimples and foci of infection well. With a handkerchief, it is more difficult to clean, since then can get stuck fluff on top.
I was able to even shrink a Miliennarbe that just never wanted to disappear.
However important this instrument is intended for Millien, not to pimples expressions. I can not recommend at least.