NEW ORLEANS, Nov. 2, 2021 /PRNewswire/ -- Former Attorney General of Louisiana Charles C. Foti, Jr., Esq. and the law firm of Kahn Swick & Foti, LLC ("KSF") are investigating the proposed sale of Flexion Therapeutics, Inc. (NasdaqGM: FLXN) to Pacira BioSciences, Inc. (NasdaqGS: PCRX)....