“…Nausea, vomiting, erythema, pruritis, xerosis, fatigue, cataracts (73), aging, burns (74), and carcinogenicity (65,72,(75)(76)(77) are the well-recognized side effects. However, the use of therapy is contraindicated in pregnancy, lactating women, and people with a history of skin cancers, arsenic exposure, photosensitive disorders or cataracts (62,72). Patients should be strictly instructed to wear UV-absorbing goggles and avoid direct or filtered sunlight for 24 hours after the treatment (62,65).…”