As a detective tasked with solving the mystery of the crossword clue ‘Brand of congestion medication‘, I immediately began piecing together clues in my mind. I knew that the answer must be a well-known brand, specific to the field of medicine, and designed to alleviate symptoms of congestion. Upon reflection, the term “congestion medication” triggered a spark in my mind, and Sudafed quickly came to mind. Sudafed has been a popular medication for congestion relief for many years, and it fit all the requirements of the clue. I submitted Sudafed as the answer, and sure enough, the crossword was completed successfully. As a detective, solving these smaller mysteries leads to bigger, more important ones, and it’s always a thrilling feeling to uncover truth through critical thinking and analysis.