I'm on a twice a day regimen of antibiotics for 1 week. I too asked my Oncologist why do I have to wait 6 weeks before the next CT. His response was to give the " infection " time to clear up. I've had Ct Scans of my lungs every year since I had my 1st cancer in May of 2021. I had a second unrelated cancer in March of 2022. The CT scan from August of 2024 saw only 1 - 4mm node in my right upper lobe. The Scan on 3/19/25 showed 4 nodes total in the right upper lobe, with the largest being what the pathologist said was a 1 cm spiculated node. There were 2 - 4mm nodes and 1- 5mm node as well. My Oncologist showed me different angles including one that seemed to show 2 "legs" coming off the bottom of the larger node. He said he believed these were blood vessels and that I had an infection of some kind. He has been with me through the two previous cancers, and I do trust him. As I said earlier, I asked him point blank if waiting 6 weeks would change my outlook if he was wrong and he replied " It would not." I hope he's right, but I am preparing myself in case he's wrong.