L56.2

Clinical Causes: Exposure to certain fragrances or deodorants containing furocoumarins Contact with plants such as lemon, lime, grapefruit, or bergamot orange, which contain photosensitizing compounds Use of topical medications like diuretics or some antibiotics that include photosensitizing agents Application of certain skincare products with photoreactive chemicals Contact with chemicals or substances in industrial or household products that contain photoactive ingredients

Key Symptoms: Develops on areas of skin exposed to sunlight after contact with a photosensitizing agent Redness and swelling at the contact site Presence of hyperpigmentation or darker patches on the affected skin Itching or burning sensation on the skin In some cases, blistering or peeling of the skin may occur

Diagnosis Path: Diagnosis primarily involves a detailed review of the patient’s medical history, exposure history, and specific contact with potential photosensitizing agents. A dermatologist may perform a physical examination to identify the characteristic skin changes. Patch testing can be useful to pinpoint the specific substance responsible for the dermatitis. Additionally, patients may be asked to keep a diary to record exposures and skin reactions. Confirmatory diagnosis often combines clinical presentation with history of contact and exposure to sunlight.

Treatment Protocols: Avoidance of known photosensitizing agents and substances implicated in previous reactions Protection of skin from sunlight using protective clothing, wide-brimmed hats, and broad-spectrum sunscreens Use of topical corticosteroids to reduce inflammation and relieve itching Application of soothing skin creams or moisturizers to assist skin healing In severe cases, systemic treatments or antihistamines may be considered under medical supervision Patient education about avoiding identified triggers and sun exposure during peak hours