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Make sure that both the doctor and the patient wear UV protective
goggles before starting treatment.
Individual response
The irradiation dose must be adjusted based on the individual response of
the patient. The skin response of the previous treatment must be checked
and some adjustments should be made accordingly before each new
treatment.
Dosage selection
The initial dose of UVB therapy is usually 50% to 75% MED, 3 to 5 times a
week. According to treatment frequency and treatment response,
determine whether to increase the irradiation dose or not for each
continuous treatment and the rate of increased dose. In principle, the
increased dose should meet the standard that the erythema is just visible
after each exposure. When UVB is used in combination with other
therapies such as retinoic acid and calcipotriol, dose and frequency
adjustment should be paid attention to. The light sensitivity of the skin on
the calves, feet, palms and elbows is generally lower than that of other
body parts, thus the dose can be appropriately increased. Treatment
continues until the condition is completely relieved or no longer
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