Ultraviolet therapy

Type:Uv phototherapy   Time:2019-01-18 21:10:30 Ultraviolet radiation therapy is a physical therapy technique that uses ultraviolet light to illuminate the human body to prevent disease.

Traditional ultraviolet therapy in the dermatology discipline generally refers to a method of treating skin diseases with artificial light sources UVB, UVA, and UVB in combination with UVA radiation. In recent years, new spectrums for treating skin diseases, such as UVB at 311 nm, are known as narrow-spectrum medium-wave ultraviolet (NB-UVB) and UVA1 (340-400 nm).

From thousands of years ago, people began to use sunlight to treat a variety of diseases. In modern times, Niels Finsen applied carbon arc light therapy to treat lupus vulgaris as the earliest record of using artificial light sources to treat skin diseases. In the 1920s, Goeckerman began to treat psoriasis with topical coal tar and high-pressure mercury vapor light therapy, and achieved good results, which became the beginning of modern phototherapy. In 1947, PUVA therapy with oral or topical psoralen plus long-wave ultraviolet radiation appeared. Now, NB-UVB is widely used in the treatment of skin diseases. The phototherapy of dermatology has experienced great development. People explore and invent new light sources and phototherapy methods to make phototherapy more effective, more convenient and safer.

Ultraviolet light therapy for psoriasis, vitiligo. It is a physical therapy technique that uses ultraviolet rays to illuminate the human body to prevent and treat diseases. Ultraviolet light therapy is one of the effective methods for treating MF, especially early MF. Commonly used ultraviolet rays include PUVA, broad-spectrum medium-wave ultraviolet (BB-UVB), and NB-UVB. In 1984, NB-UVB was applied to the clinic. It was mainly used to treat psoriasis vulgaris. Its efficacy was significantly better than that of BB-UVB, which was equivalent to that of PUVA, but the adverse reactions were small.

Ultraviolet phototherapy uses narrow-spectrum UVB technology with a wavelength of 311 nm. Clinical trials have shown that narrow-spectrum mid-wave ultraviolet rays with a wavelength of around 311 nm have significant effects on the treatment of skin diseases such as vitiligo and psoriasis, and are purely physical therapy. The ultraviolet light therapy device emits a medium-wave ultraviolet light having a wavelength of 311 nm, and the ultraviolet light of this wavelength can be mostly absorbed by the epidermal tissue, and thus has a remarkable biological effect on tissues such as skin. 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 simple treatment. .