UV Shield for the Smile

Medical Concerns, News & Articles, Newsletters, Skin Concerns
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Monika Kaniszewska, MD, FAAD

As we come out of our winter hibernation and the sun begins to grace us with its warm presence during the spring and summer months, it’s advantageous to be aware of the potential impact on our skin, especially for those prone to cold sores. Various factors can trigger cold sores caused by the herpes simplex virus (HSV-1), and sun exposure is a known contributor to their recurrence.

Exposure to sunlight, specifically ultraviolet (UV) rays, has been identified as a common trigger for the reactivation of the herpes simplex virus, leading to the development of cold sores. The link between sun exposure and cold sores lies in the ability of UV rays to weaken the immune system’s response, providing an opportunity for the virus to become active.

During the late spring and summer, when outdoor activities often involve prolonged sun exposure, individuals with a history of cold sores should take extra precautions to protect their lips and facial skin. Applying sunscreen designed for the lips can act as a barrier, reducing the risk of cold sore outbreaks.

Choosing a lip sunscreen product with a high Sun Protection Factor (SPF) and broad-spectrum protection to shield against both UVA and UVB rays is essential. This added layer of defense helps prevent cold sores and protects the delicate skin on the lips from sun damage, premature aging, and potential discomfort.

Two products for lip protection I often recommend are EltaMD UV Lip Balm SPF 36 ($17, 0.28 oz) and TiZo Tinted Lip Protection SPF 45 Broad Spectrum ($11, 0.14 oz). These two products are known for their effective safeguarding against harmful UV rays. Regularly applying either of these lip sunscreens, especially before extended sun exposure, can contribute to maintaining lip health and minimizing the risk of cold sore outbreaks.

While enjoying the sunnier days to come, please be mindful of the potential triggers for cold sores, including sun exposure. By incorporating protective measures, such as reliable lip sunscreen, individuals can confidently embrace the season’s warmth while keeping their lips healthy and cold-sore-free. If you are experiencing frequent cold sore outbreaks, schedule an appointment with your provider, as alternative courses of treatment might need to be explored.