If you’ve ever had a cold sore, you know the signs. It starts with tingling, then the edge of your lip or corner of your mouth begins to burn. This is followed by the outbreak: A red sore appears, and a few days later, it breaks open and crusts over. Within one to two weeks, your sore usually goes away.
Cold sores, or fever blisters, are caused by a virus and have no cure. When you feel one budding, you want to get rid of it, fast.
But you probably don’t need a doctor. There are things that you can do at home to soothe your discomfort as they heal – anything from using ice or aloe vera to using pain medication from your medicine cabinet.
How to Treat Cold Sores
There are many things that you can do at home to soothe the sting of a cold sore, such as:
Ice. You can numb the pain if you apply a cold compress to the sore. But don’t put ice directly on your skin – that could damage it.
Pain relievers. When a cold sore really stings, you may get some relief from an over-the-counter painkiller like acetaminophen.
Over-the-counter creams.You can buy products at the drugstore to help ease your cold sore discomfort or help keep the skin soft while it heals.
Prescription drugs. Because cold sores are caused by a virus, your doctor may suggest an antiviral medication to help you heal more quickly. The antivirals used to treat cold sores include acyclovir (Zovirax), famciclovir (Famvir), penciclovir (Denavir), and valacyclovir (Valtrex).
Sunscreen. Getting a sunburn may trigger a cold sore. Using sunscreen when you’re out in the sun may prevent it.
Aloe vera gel. The same gel used for sunburn may help a cold sore to heal. Some studies show that the gel may help fight viruses, including herpes simplex.
Lysine. This supplement may help treat your cold sores. It comes in a cream or in capsule form.
Propolis. This is a resin-like material made by bees from the buds of poplar and cone-bearing trees. It may be used like an ointment to treat cold sores.
Lemon balm. Some research has shown that lemon balm extract can help cold sores get better, too.
Tea tree oil. Some research has shown that this strong-smelling oil helps a cold sore heal more quickly.
Peppermint oil. Research has found that peppermint oil may help fight the virus causing cold sores.
Manuka honey. Medical-grade manuka honey may work as a topical medication to treat your cold sores, according to some studies.
Vitamin C and vitamin E. Both of these vitamins have been shown to fight cold sores. Studies have shown that vitamin C can inactivate the herpes simplex virus, the virus that causes cold sores. Other research has shown that vitamin E can help heal cold sores.
Stress reduction. Taking steps to lower your stress levels may help ward off cold sores. Try meditation or deep breathing exercises.
What Not to Do With Cold Sores
Certain habits or behaviors could trigger a cold sore outbreak or make new cold sores appear elsewhere on your body.
Causes of Cold Sores
Cold sores are caused by a common virus called herpes simplex. Most people get exposed to the virus when they’re babies or children. Although there’s no cure for it, you can treat it. Once you’ve been exposed, the virus is always in your system, even if it doesn’t often cause cold sores or other symptoms. Knowing what causes cold sores can help you prevent the spread.
Herpes simplex is spread by close contact. If you kiss someone with a cold sore, or touch their face and then your own, you can catch the virus. You can also get herpes simplex by sharing things with someone who has it, such as:
- Lip balm
- Forks or other utensils
- Mugs or plates
- Razors or towels
You’re most likely to get the virus from someone who has an active cold sore. But it’s also possible to contract it from someone who doesn’t have a sore or blister showing.
The virus also can spread to your eyes or genitals. For example, you can get it from rubbing your eyes after getting saliva from an infected person on your hands, or receiving oral sex from someone who has cold sores.
When you’re first exposed to the virus, you’re likely to get a cold sore. After a week or two, it’ll go away on its own. Then the virus goes dormant in your body. You may never have another cold sore outbreak again, but many people do.
Show Sources
Photo Credit: iStock/Getty Images
SOURCES:
American Academy of Dermatology: "Herpes simplex: Signs and symptoms," "Herpes simplex: Who gets and causes," "Herpes simplex: Diagnosis and treatment," "Herpes simplex: Tips for managing."
Rezazadeh, F. J Dent (Shiraz), March 2016.
American Academy of Family Physicians: "Mouth Problems."
Office on Women's Health, U.S. Department of Health and Human Services: "Oral health fact sheet."
American Academy of Otolaryngology-Head and Neck Surgery: "Mouth Sores."
Journal of Dentistry (Shiraz): "Assessment of Anti HSV-1 Activity of Aloe Vera Gel Extract: an In Vitro Study."
Mayo Clinic: "Cold Sore: Symptoms & Causes," "Diagnosis & Treatment."
Alternative Medicine Review: "Natural Remedies for Herpes Simplex."
Nature Public Health Emergency Collection: "Effectiveness of Herbal Products Against Herpes Infections."
BMJ Open: "Kanuka Honey Versus Aciclovir for the Topical Treatment of Herpes Simplex Labialis: A Randomised Controlled Trial."
ENThealth from the American Academy of Otolaryngology-Head and Neck Surgery Foundation: "Mouth Sores FAQs."
