stinging nettle leaf for allergy relief

Most adults have been exposed at some point to the virus that causes cold sores, herpes simplex (HSV1). Not everyone reacts by developing recurrent cold sores, but those who do would love a way to get rid of them quickly. One British reader discovered that stinging nettle offered a unique (if painful) solution.

Stinging the Cold Sore with a Nettle:

Q. I suffered frequently with cold sores starting when I was a teenager. One day, although the pain was excruciating, I felt the urge to sting it with a nettle. When the nettle sting wore off, I stung it again and again.
Surprisingly, the symptoms began to subside. Every time thereafter I felt the beginnings of a cold sore, I stung my lip. I no longer suffer from cold sores. I must have found a way to kill the herpes virus.

A. What a fascinating story! As it turns out, in central Italy stinging nettle (Urtica dioica) is part of a traditional treatment for the herpes infection chickenpox (Journal of Ethnopharmacology, April 26, 2005). As a result, scientists studied whether it might fight off viruses. They found that stinging nettle extract appears to have antiviral activity, especially when it is combined with extracts of licorice and lotus (Virology Journal, July 26, 2012). It may prevent virus from attaching to cells (Antiviral Research, April 2011).

None of this research was carried out in people with cold sores, and so far yours is the only report of this approach. The remedy you devised is likely to cause pain and we doubt that anyone else would want to try your experiment. There are effective antiviral drugs for treating cold sores, and people who have recurrent difficulties with this might benefit from acyclovir, famciclovir or valacyclovir.

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  1. Terran
    California
    Reply

    I’ve often used stinging nettle to treat poison oak or poison ivy rashes. It works, and the sting actually feels good–it numbs the area and stops the itching. I’ll look forward to trying nettle on cold sores when/if next needed.

  2. Larry
    North Carolina
    Reply

    Valacyclovir is very effective and inexpensive and doctors are willing to prescribe it without argument. Why mess around with something else?

  3. Sharon
    Reply

    At the first sign that of a cold sore, I take two L-Lysine (1000 mg each) tablets. Sometimes two in the morning and again at bedtime. The L-Lysine lessens the outbreak and duration.

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