I don't own a Zeno, but I read about the idea of heat treating cystic acne thanks to Zeno. It does work, but there's no need to spend $185. A 40 or 60 Watt light bulb in a lamp does the trick. Turn the lamp on, take the lampshade off, and hold the bulb against the zit for a couple minutes. Briefly switch the lamp off if it gets too hot.