Prescription antiviral medications are far more effective for both treatment and prevention of cold sore outbreaks. Lemon balm. Over-the-counter antiviral medications. Ice. Aloe vera. Sunscreen. Stress reduction. Ibuprofen or acetaminophen.
As soon as you notice your lip swelling, apply a cold compress. In fact, this. Do this until the swelling goes down and you get relief from the pain and discomfort.