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At present, skin diseases are plagued by many people, making people's life inconvenient, stressful, learning, work efficiency and so on. Many people choose to treat them by ultraviolet light therapy. Is it harmful to normal skin by long-term exposure with ultraviolet light therapy?

Long-term exposure with ultraviolet light therapy will cause some damage to normal skin, but the degree of response varies according to the patient's body. Correct use of ultraviolet light therapy will not cause much harm.

First, we must carefully select the treatment equipment. Before use, please read the instruction manual carefully to understand the correct operation method of the equipment. It is recommended that patients with home phototherapy choose NBUVB equipment for treatment, because the treatment dose of NBUVB is easier to choose than PUVA therapy. And control, it is recommended that the patient make a treatment record during the use, including the time, dose, reaction, etc. of each exposure, and regularly go to the regular dermatology clinic for phototherapy.

Ultraviolet light has good drying, bactericidal and anti-inflammatory effects. It directly kills bacteria or viruses in superficial tissues, accelerates blood circulation, relieves pain and promotes epithelial regeneration. Therefore, ultraviolet radiation treatment can directly kill herpes virus. It can prevent secondary bacterial infection, promote blister absorption, relieve pain, accelerate the repair and healing of skin lesions, and thus play a good therapeutic role. The study also found that ultraviolet light therapy can significantly inhibit the activity of antigen-presenting cells such as epidermal Langerhans cells, reduce inflammation, improve local blood circulation, promote rash healing and relieve pain, and have fewer adverse reactions and easy treatment. .

During the irradiation, cover or use sunscreen to protect the area around the skin lesions; wear UV goggles to protect the eyes; avoid excessive sun exposure on the irradiated parts, cover with clothing or use sunscreen when going out; after exposure, if the skin appears obvious erythema, it should be adapted Increase the interval between exposures or reduce the dose of radiation.