Although cold sores tend to clear up within two weeks, certain natural remedies can help speed up healing and ease irritating symptoms like tingling, itching, and oozing. One popular natural remedy for cold sores is prunella vulgaris, an herb that contains vitamin C and several anti-inflammatory compounds.
While research on prunella vulgaris is fairly limited, some tests on human cells suggest that certain carbohydrates found in the herb can help fight off herpes simplex virus 1 (the virus that causes cold sores). Prunella vulgaris also appears to knock out herpes simplex virus 2, the virus that causes genital herpes.
Read on for more about prunella vulgaris.