use a kitchen knife
Serious awnser: Salicylic acid and/or benzol peroxide.
1 zit =/= acne
Do I put that on my zit and wash it? Or what?
91% Isopropyl rubbing alcohol and a cotton ball, clean your face with it every night and/or morning. It works, doesn't leave a smell, dries quickly, and is inexpensive.
I'm not a doctor, but I'm pretty sure disintegrating your face with rubbing alcohol probably isn't the best way to get rid of zits.