BETADINE® COLD DEFENSE works by an antiviral effect. It traps and eliminates viruses, thereby having effects on symptom relief.82.83.87 Our studies have looked at total symptoms and we have demonstrated that BETADINE® COLD DEFENSE will reduce the total symptoms such as runny nose, nasal congestion, sore throat, etc. when given as an early intervention for treatment of common cold and flu-like illness.82,83,88