Re: what is wrong
That's why you don't pop zits - they leave welts, or even scars. Although there is a welt/scar where you popped a zit, it doesn't mean it destroyed your skin. You can still grow hair there.
From personally getting a *LOT* of zits on my penis, and popping them, the best way to get rid of ANY zit is just leave it alone, and softly rub the zit with soap while taking a bath or shower until it goes away. But don't worry about it.
My toes are cold.