Doxycycline is one of the most commonly prescribed medications for acne, and I can personally attest to how effective it has been in treating my breakouts. Like many others, I started taking it because of its proven ability to reduce acne, but one thing I didn't know at first was how much it can increase your skin's sensitivity to sunlight. Since summer often means spending more time outdoors, this is an important side effect that everyone taking doxycycline should be aware o