April 6, 2006 — It's an annual rite of passage for those who suffer from seasonal allergies: sinuses so blocked it's difficult to breathe, a recurring headache, a feeling of constant "pressure" on the face. But for people like Michele Lynch who suffer from chronic sinusitis, allergy season seems to last all year. "I couldn't work. You can't breathe. I couldn't sleep," she said. Lynch, 24, had suffered from sinusitis most of her life — the result of abnormal bone growth in her sinuses. But a few weeks ago, doctors suggested she try a radically new treatment that's been available...