Which of these will dry out skin the fastest (for a zit)?

I have a zit that simply won't go away so I want to try to dry it out. Which will work the quickest, I involve it gone ASAP. This is what I have on appendage: salicylic acid 5%, benzoyl peroxide w/ glycolic sharp, sulfur mask or toothpaste - which would be the most drying?Which of these will dry out skin the fastest (for a zit)?
Go beside the toothpaste. I hear it works wonders.
For future problems though, I hear that (I estimate the brand is Clean and Clear) there is an acne medication call "Spot Treatment" and it supposedly is fantastic.
Good luck!
I LOVE NEEM from Bath and Body works. It clears up boils in hours!!
I'm allergic to benzoil peroxide presently (I used to use it when I was younger). I use salicylic bitter daily in a minute, and it doesn't do much to clear up existing problems, just topical ones.
get zapzyt, omg 20 second after you put if on your skin is depleted. It'll just murder the zit.
Toothpaste.NOT the gel kind...
Old "jailhouse trick"