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How to pop a pimple
Pop whitehead pimples.
Whitehead pimples have usually been around for a few days, and they have a white tip where pus has collected underneath the skin. These pimples are easy to pop, and when treated with care they can be safely removed without spreading the infection or causing scarring.
Don't pop new pimples. Pimples that have just appeared in the past day or two aren't ready to pop yet.