MMS, internally and topically. Also Cold-eeze has zinc gluconate in it that the virus cannot live in or amidst. Don't worry, the MMS can knock it out. Start with 2 drops with 10 drops lemon and increase from there. You'll never have a problem again. I know it is scary now that it is new but MMS is very powerful and you don't have to worry. My husband had cold sores on his mouth his whole life. The last outbreak he took 10 drops MMS and bam, it went away without even surfacing which never ever happens, and we are believers. Usually it is 2 weeks of embarassment. Thanks MMS once again.