Is the H-influenzae causing symptoms for you? I do hope you get it resolved soon. It's now three months since I took the doxycycline and I continue to feel so much better—no more violent coughing spells and so much more energy. I've been nebulizing with 7% saline and the Aerobika twice a day, and walking 5 or 6 days a week. I take NAC as recommended by my pulmonologist and have no problem bringing up sputum at this point. I see him in a month and am curious as to how he will respond when I share how much I've learned from this group and how much it has helped.