I don't know about cranberry juice but I do know that cherry juice or dried cherries (eat the whole bag) works. When I first thought the pain/swelling/inflamation might be gout I went to the grocer and bought/consumed a bag of dried cherries. Within 25 minutes 80% of the pain/swelling/ inflamation were gone. Still works for me. Stay away from shellfish and beef, especially cured or with nitrates. Other meats seem to be okay.
