Re: Can someone tell me the differences between acne?
I don't know if i'm 100% correct but here's but they mean or have meant to me:
Blackhead is normally a small pimple that looks black or dirty(not white).
Whitehead is the same thing but you can see the white puss.
Pimple, Zit, Blemish are the same thing and can refer to anything like whiteheads, blackheads, cysts, etc.
Cysts are really big (about 1/2-1 inch) pimples. They are also extremely painful. These are also the one's that, when popped, leave deep scars.