Acne (breaking out)
Understand what is happening in the pore, compare actives with trial data, and recognize the look-alikes that need a different plan.
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2 articles

Acne, explained: the four things going wrong, and what has evidence
Acne isn't about being unclean — it's four processes in one pore. Knowing which is which is how you pick treatment that has trial data instead of guessing.
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Purging vs breaking out: how to tell, and how long to wait
New product, new pimples. Whether that's a temporary purge or a genuine bad reaction decides whether you push through or stop — here's how to tell.
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