Actually, the Bactrim treatments never really got rid of the infection. My doctors ultimately put me on an alternating rotation of Colistimethate and Cayston (each one for 30 days, both nebulized), in addition to my regular breathing treatments with albuterol and 7% sodium chloride. I was on that rotation of inhaled antibiotics for about 8-9 months, and after that my sputum culture no longer showed the Achromobacter infection. At this point, I am hoping it doesn't "rear its ugly head" again....