Cold sores are painful, fluid-filled blisters that appear on the lip, mouth or throat. They typically are caused by the herpes simplex type 1 virus, and it’s estimated that 90 percent of adults older than 40 carry it.
Outbreaks often begin with a tingling sensation around the mouth and blisters can last between seven and 10 days. The amino acid lysine has been known to heal cold sores, so eating foods rich in this substance is important during an outbreak.
Try these natural remedies for cold sores: