2024年10月1日 · Povidone-iodine 10% w/v, laureth-9 10 mg/mL. Betadine Cold Sore Paint Pain Relief Formula: ethanol 30% v/v. Povidone-iodine is a topical microbicidal antiseptic. Povidone-iodine is microbicidal to viruses, bacteria, fungi and spores. As a topical antiseptic, to prevent infection in minor cuts, wounds and abrasions.