Why does my skin feel slightly itchy after applying a certain sunscreen?

In daily life, prolonged exposure to sunlight can damage the skin. To prevent sunburn, we commonly apply sunscreen. However, why does my skin itch after applying a certain sunscreen?

Why does my skin itch after applying sunscreen?

This is likely due to an allergic reaction. It is best to discontinue use of this sunscreen immediately. You may bathe with diluted floral water (a traditional Chinese herbal solution), which helps relieve itching. Additionally, consider taking antihistamines or other anti-allergic medications as directed. Maintain good skin hygiene, avoid using any cosmetics temporarily, refrain from consuming allergenic foods, and strengthen your overall health and immunity to support recovery.

Sunburn—also known as solar dermatitis—is skin damage caused primarily by excessive ultraviolet (UV) radiation from sunlight. Typical symptoms include skin redness, pain, swelling, erythematous patches, and peeling. In severe cases, blisters or large bullae may develop. If sunburn symptoms are mild, specific medical treatment may not be necessary. For mild redness and heat sensation, cold compresses can be applied initially; once the skin temperature normalizes, gently cleanse with lukewarm water and apply moisturizing, hydrating skincare products for symptomatic relief. If sunburn affects the face, avoid wearing makeup. Should blisters form, never puncture or drain them yourself. Instead, consult a dermatologist at a hospital for professional management—sterile aspiration of blister fluid while preserving the blister roof helps promote healing and prevents infection.

In general, preventive measures should be prioritized: avoid prolonged direct sun exposure to prevent sunburn. Use broad-spectrum sunscreen regularly to protect against UV radiation. We hope this information is helpful to you!