Maggot Therapy: Since the 1990s, with the development of antibiotic-resistant bacteria, maggots have become a more viable option. Fly larvae are effective because they liquefy and consume dead tissue, kill harmful bacteria and stimulate healing. During therapy, maggots are placed in the wound and covered in a cage or pouch to keep them contained within the infected area for two days. Several two-day sessions may be needed for the wound to heal completely.