SKINCARE: Navigating skin reactions triggered by UV rays

As summer temperatures peak in Nepal, skincare concerns are escalating, with photosensitivity emerging as a prominent issue alongside oily skin, acne, and irritations. Photosensitivity is an abnormal immune response to UV radiation, manifesting as itchy red rashes, skin discoloration, and blisters. While often heightened in summer, individuals prone to this condition require year-round precautions due to the persistent presence of UV rays.

“

In simple terms, photosensitivity can be understood as an abnormal immune system reaction to sunlight or UV rays.

Dr. Tapan Pradhan, a dermatologist and co-founder of Kayakalpa skin and hair clinic, explains that photosensitivity can be triggered by sunlight, tanning beds, certain medical conditions like Lupus or Rosacea, and even specific medications, fragrances, or nutritional deficiencies. He clarifies that photosensitivity differs from a regular sunburn, which affects anyone exposed to prolonged sun. Photosensitive reactions can appear within minutes to hours after sun exposure and may involve sharp pain, similar to ant bites, and in severe cases, even fever.

“

Sunburn takes time to become visible, while a photosensitive reaction can develop within minutes to a few hours after sun exposure, depending on the underlying cause, the person's skin sensitivity, and the intensity of UV exposure.

To mitigate these reactions, dermatologists recommend careful product usage. Active ingredients such as retinol or tretinoin, often prescribed for nighttime use, can increase skin susceptibility to UV damage if applied during the day. Dr. Pradhan advises timely application of skincare products and suggests opting for mineral sunscreens as a protective measure against UV radiation.

“

When dermatologists recommend active ingredients such as retinol or tretinoin for nighttime use, it is for good reason. Applying them during the day can make the skin more susceptible to UV damage and trigger photosensitive reactions.