You're ready to take on a cold sore. So now it's time to identify what may cause your cold sore outbreaks, so you'll have one more weapon in your arsenal.

Identify cold sore triggers

Remember, not everyone’s cold sore is triggered by the same thing. But there are common factors that may cause your cold sore outbreaks. Want to avoid them before things get ugly? Read on.

Fight Fatigue to prevent cold sore outbreak


Like stress and illness, fatigue can zap your immune system, making you easy prey for a cold sore outbreak. In today’s hectic world, feeling “beat” can give cold sores the advantage. So relax. Exercise. Sleep. And give your immune system a fighting chance.
Read more: Better Sleep Tips


Sure, stress messes with emotions. But stress can also wear down your immune system, giving that dormant cold sore a chance to launch a sneak attack. Fight the urge to stress out. Instead, breathe deeply and relax.

Read more:Stress-Free Holidays

Protect yourself from the cold

Cold weather

Protect yourself from the cold. Wear a scarf or pull up that turtleneck to avoid exposure to cold weather, dry air and winter wind that can dry out lips. Use lip protectant to ensure lips are moisturized.

Read more: Stress-Free Holidays

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Excessive sunlight

Go on the offensive against sun exposure. Not only can ultraviolet (UV) rays from the sun damage your skin, but sun exposure can also trigger cold sores. So fight back by using lip balm with SPF and wear a wide-brimmed hat and use a beach umbrella.

Read more: Cold Sores Triggered by Sun Exposure

Hormonal changes can cause cold sores

Hormonal changes

For women, hormonal changes during the menstrual cycle can trigger an outbreak. Pay attention to your own hormonal cycle to manage stress. And give yourself a fighting chance against flare-ups. Keep a tube of Abreva® cream handy for when you feel the first tingle of a cold sore.

Read more: Periods and Pregnancy

Protect Your Mouth against cold sores

Lip or mouth injury

Trauma to your mouth or lips can launch a cold sore outbreak. Could be an injury. Could be a dental procedure that pulls at the sensitive area around your mouth. If this is one of your triggers, make your dentist an ally and join forces to minimize trauma.

Read more: Maintaining Healthy Lips

Stay Strong - Cold Sore Triggers

Weakened Immune System

A fever, a cold or the flu can leave you feeling run-down and on the defense against a cold sore outbreak. When you feel a cold, fever or flu coming on, listen to the experts and get plenty of rest and fluids. It could be just what you need to knock out a cold sore.

Read more: Survive Flu Season