The comments below reflect the personal experiences and opinions of readers and do not represent medical advice or the views of this website. The information shared has not been evaluated by the FDA and is not intended to diagnose, treat, or prevent any disease or health condition. Always consult a qualified healthcare professional for medical concerns.
Marcia (Utah) on 05/01/2020:
A drop of liquid magnesium chloride (aka magnesium oil) on the end of a Q-Tip, will kill a cold sore immediately.