I Just Learned What The White Bits On Used Pimple Patches Really Are, And No, It's Not Pus

My first experience with a hydrocolloid patch ― the generic name for the various pimple patches people apply to their faces ― actually had nothing to do with a spot. 

That’s because the same technology, and a lot of the same ingredients, are used on those blister patches you place on your ailing heel (fellow Docs lovers will know the pain). 

But if I’m being totally honest, I had no idea why they shrunk my spots or healed my post-run bubble ― until I saw a TikTok from board-certified dermatologist Dr.