Acriflavine has been around for nearly a century. First used as an antiseptic during World War I, this yellow dye earned its reputation killing bacteria in wounds and fighting infections. Nobody imagined it would one day show up in conversations about cancer therapy. That might be changing. Recent research suggests this overlooked compound could be a powerful weapon against one of medicine’s toughest enemies: brain cancer. The Problem with Current Brain Cancer Treatment Brain tumors are notoriously difficult to treat. The blood-brain barrier acts like a security system, blocking most drugs from reaching the tumor. Surgery carries huge risks when you’re cutting around healthy brain tissue. Radiation and chemotherapy help,…