Ordinary Drugs And Lotions Are Worsening Sun Damage

Here’s what to avoid.

Most people are aware that using sunscreen can protect against the sun’s harmful rays, but not everyone realizes that certain medications and creams might diminish that protection.

Dr. Kaveh Nezafati, an assistant professor of dermatology at UT Southwestern Medical Center in Dallas, emphasizes the importance of being cautious about sun exposure. “While skin cancer is a major concern, there are other reasons to be cautious about excessive sun exposure,” he notes. “Certain factors can increase our sensitivity to sunlight.”

Nezafati explains that some medications can make your skin more susceptible to UV damage. The U.S. Food & Drug Administration (FDA) has highlighted that some drugs contain ingredients that can react negatively when exposed to UV light. The intensity of the reaction depends on the drug’s dosage and the duration of sun exposure.

For instance, blood pressure medications like hydrochlorothiazide are known to increase sensitivity to sunlight. “Ultraviolet rays interact with the medication in the bloodstream, creating chemical byproducts that can damage skin cells and lead to sunburn,” Nezafati says.

Similarly, some antibiotics such as ciprofloxacin and doxycycline can cause similar reactions. “It’s crucial for patients to understand the side effects of their medications and take necessary precautions,” Nezafati advises.

Beauty products can also heighten the risk of sun damage. With the rise in popularity of skincare routines, many people use various oils, ointments, and lotions. Nezafati points out that over-the-counter products like retinol serums and exfoliants can increase photosensitivity. Ingredients such as alpha and beta hydroxy acids, often used for their anti-aging effects, can make skin more prone to UV damage.

To mitigate this risk, Nezafati suggests applying a sunscreen with at least SPF 30 beneath makeup, as many makeup products with SPF alone may not offer sufficient protection.

Additionally, citrus juice can cause skin reactions when exposed to sunlight. “Certain plants contain furocoumarins, which react to UV rays and damage skin cells,” Nezafati explains. In Texas, lime juice is a common source of this reaction. Known as “margarita burn,” this condition can result in itchy rashes, swelling, and blisters, typically appearing one to two days after exposure.

To prevent such reactions, wash your hands thoroughly after handling citrus. If a reaction occurs, Nezafati recommends using over-the-counter cortisone cream for relief from itching and irritation. “Most cases are mild and require only basic care as the skin heals,” he concludes.