Understanding Photodynamic Therapy (PDT): A Guide for Patients and Caregivers

Photodynamic therapy (PDT) is a minimally invasive treatment that combines a light-sensitive drug, light, and oxygen to target and destroy cancer cells while sparing most healthy tissue. It is especially effective for non-melanoma skin cancers such as basal cell carcinoma, squamous cell carcinoma, and precancerous actinic keratoses. PDT is often chosen for visible areas like the face, where cosmetic outcomes matter, and it can also improve acne and skin texture. Benefits include precision, reduced scarring, and shorter recovery times compared to surgery. However, patients must avoid sunlight and bright indoor light after treatment to prevent side effects, and PDT is less effective for deeper cancers. Multiple sessions may sometimes be needed.

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