Cystic-acne sufferers know that a cyst is not the same beast as your garden-variety pimple. While whitehead pimples sit on the surface of the skin (which, though unsightly, means they’re easier ...

Doxycycline is an antibiotic that can be used to treat acne. As part of a group of antibiotics called tetracyclines, it helps treat acne by reducing bacteria on pores and by calming inflammation.

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