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What Are the Treatments for UV Allergy?

Apr 14, 2022 Source: Cainiu Health
Dr. Gan Liqiang
Introduction
Symptoms of skin photosensitivity first appear on sun-exposed areas such as the face, neck, and limbs; in severe cases, non-exposed areas—including the trunk—may also be affected. After developing this photosensitivity, the primary precaution is to avoid light exposure: minimize outdoor activities, especially between 10:00 a.m. and 2:00 p.m., when ultraviolet radiation is at its peak intensity.

In real life, many people have sensitive skin. For instance, some individuals suffer from photosensitivity (an allergic reaction to ultraviolet [UV] radiation). When such a reaction occurs, treatment is necessary. So, what are the treatment options for UV allergy?

What Are the Treatment Options for UV Allergy?

Clinical manifestations of UV-induced photosensitivity typically first appear on sun-exposed areas—such as the face, neck, and extremities—and may extend to non-exposed areas like the trunk in severe cases. Once this reaction develops, strict photoprotection is essential: minimize outdoor activities, especially between 10:00 a.m. and 2:00 p.m., when UV radiation is most intense. Apply broad-spectrum sunscreen daily to protect against both UVB and UVA rays.

Treatment for UV allergy includes oral administration of antihistamines (e.g., loratadine) and anti-inflammatory agents (e.g., hydroxychloroquine) to relieve itching and inflammation. In severe cases, systemic glucocorticoids may be prescribed orally or via intramuscular injection of betamethasone compound injection. During the early acute phase, when erythema and edema are prominent, topical calamine lotion can be applied several times daily. In subacute or chronic phases, mild-to-moderate potency topical corticosteroids—such as desonide cream, hydrocortisone butyrate ointment, or mometasone furoate cream—may be used; however, prolonged use should be avoided. Alternating corticosteroids with topical calcineurin inhibitors (e.g., tacrolimus or pimecrolimus) is also recommended to minimize corticosteroid-related adverse effects.

Dietary modifications are also important: avoid foods known to trigger allergic reactions. Additionally, regular physical exercise is encouraged to strengthen overall health and immunity. We hope this information proves helpful to you.

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