This article addresses confusion between two Aspergillus lung infections that commonly occur after tuberculosis: ABPA and CPA. While they have overlapping symptoms and test results, they require different treatments—ABPA responds to short-term steroids while CPA needs prolonged antifungal drugs. Importantly, giving steroids for misdiagnosed CPA can be harmful, so doctors should be cautious about diagnosing ABPA in tuberculosis survivors and consider CPA instead.