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FAQ
If we use the uvb phototherapy for long-term treatment, will it cause skin cancer?
So far, many investigations have been carried out on the correlation between phototherapy, photochemotherapy and skin cancer, and all the results have failed to confirm that phototherapy and photochemotherapy can directly lead to skin cancer.
Does uvb phototherapy have side effects? How to deal with it once it happens?
Compared with drugs, the side effects of ultraviolet phototherapy are mild. The most common reactions are local erythema, pain and other sunburn like reactions caused by excessive irradiation dose or high irradiation frequency. If it occurs, you can suspend the irradiation first and continue the treatment after the erythema subsides. In case of severe erythema or blister, go to the hospital to see a doctor for face-to-face treatment, and continue treatment after local treatment and improvement.
If I radiate my skin for too long and overexposure them to the ultraviolet, blisters come out and the skin become tanned, what should I do?
Firstly, you’re suggested to consult your doctor at once. If you go outside remember to take measures to avoid being exposed in the sun. And you need to delay the next treatment time until the ultraviolet burned skin recovering.
Could you provide more details about how to use the UV lamp at home?
You can refer to the instructions in https://www.umassmed.edu/vitiligo/vitiligo-treatment/ https://www.umassmed.edu/globalassets/vitiligo/umass-uvb-phototherapy-guidelines.pdf And that’s just for reference, you’re suggested to consult your doctor for more details.
My doctor tell me the dosage, but I don’t know how long I need to radiate?
treating time(seconds) = dosage(mJ/cm2) or J/cm2*1000 / radiation intensity(mW/cm2)