Cold Sore Relief: Prevention, Home Cures & Faster Healing

Stopping a cold sore from forming involves early intervention with vitamins, ice, or salt. Learn how to reduce fever blister swelling and manage symptoms safely while breastfeeding or dealing with flu-like symptoms.

Businessman looking down with finger on lips

How to Stop a Cold Sore From Forming

Published Aug,14 2017 | By Christa Miller

Cold sores are infectious clusters of fluid-filled lesions that are caused by the herpes simplex virus 1, according to the Mayo Clinic. If you’ve had cold sores, you may notice a cold sore forming a couple of days before you can see it.