Does photodynamic therapy have side effects?
The photosensitizer makes the skin and eyes sensitive to light for approximately six weeks after treatment. Therefore, patients must avoid direct sunlight and bright indoor light for at least six weeks after the procedure. Since the photosensitizer typically builds up in tumors or abnormal cells and the activating light focuses on the tumor or abnormal cells, damage to nearby healthy tissue is minimal. But PDT can cause burns, swelling, pain and scarring in nearby health tissue. Other potential side effects of PDT relate to the area treated, such as coughing, problems swallowing, stomach pain, painful breathing or shortness of breath. These side effects usually are temporary.
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