Indications for ultraviolet light therapy

Type:Uv phototherapy   Time:2019-01-14 10:21:11 Indications for uvb light therapy include: psoriasis, vitiligo, pityriasis rosea, atopic dermatitis, seborrheic dermatitis, intractable eczema, and herpes zoster.

1. Psoriasis: Psoriasis,is a recurrent, chronic skin disease characterized by scaly erythema. It has long been a headache for clinicians due to the intractability and recurrence of psoriasis. Tricky problem. Current methods for treating psoriasis include physical therapy, traditional Chinese medicine therapy, and Western medicine western medicine therapy. Narrowband UVB (311nm UVB) phototherapy is now recognized as one of the first choices for the treatment of psoriasis. In recent years, it has been found that UVB at 295 nm has no anti-psoriatic effect, but causes erythema reaction to be more obvious, while UVB at 300-313 nm has the best anti-psoriatic activity, which can alleviate psoriasis. Clinical practice shows that the efficacy of 311nm UVB is better than that of broadband UVB. The incidence of erythema reaction is low, and the disease is relieved for a long time. The curative effect is similar to PUVA, but it does not require medication and has low cost. It can be used for pregnant women and children. Usually 2-3 times a week, 10-20 times for a course of treatment. At present, the application in Europe is relatively wide, and the application in the United States is gradually increasing. Many hospitals in China have begun to use 311nm narrow-spectrum UVB to treat psoriasis. The efficiency is over 90%. 

2, vitiligo: Vitiligo is due to the reduction or loss of skin melanocytes caused by pigmentation loss spots. Irradiation was induced by photochemical methods (8-methoxypsoralen plus UVA light) or narrowband UVB (311 nm) to promote melanin production. 2-3 times a week. Need to adhere to treatment, usually need 30-50 times or more treatment. In particular, it has a good effect on facial rash. The effect of trunk rash is second to that of the face. The limbs and hand and foot rash are less effective and may require a longer course of treatment. This therapy has good safety and tolerability. The efficiency is over 75%.

3, rose pityriasis: pityriasis rosea is a common self-limiting inflammatory skin disease. The onset may be related to viral infection, using physical therapy that is ultraviolet (narrow-spectrum UVB) irradiation, once every other day, 10 times for a course of treatment. The efficiency is over 95%.
    4, refractory atopic dermatitis: treatment with 311nm narrowband UVB light, three times a week, 15-25 times for a course of treatment. The efficiency is over 60%.
    5, severe seborrheic dermatitis: seborrheic dermatitis is a very common papular scaly skin disease, the incidence of 2 to 10% of the adult population. Current treatments are limited and have poor efficacy. Treatment with narrow-spectrum UVB light, three times a week, 8 weeks for a course of treatment. The efficiency is over 90%.
   6, MF and palmoplantar pustulosis: MF and palmoplantar pustulosis have a long course of disease, no special drugs to treat, the application of phototherapy treatment is good, can reduce or not use immunosuppressants.

The contraindications for ultraviolet light therapy include: pigmented dry skin disease, sun keratosis, lupus erythematosus, and solar dermatitis.

Pay attention to the following when receiving UV phototherapy:

1. This treatment is a continuous treatment process, which is treated several times to several tens of times according to different diseases, and is treated 1 to 3 times a week. Each dose is prescribed by a professional physician based on the condition.

2. Eyes and genital areas should be protected during irradiation. During the irradiation, sunscreen can be covered or used to protect normal skin around the skin lesions. Avoid excessive sun exposure on the exposed area, cover with clothing or use sunscreen when going out.

3. The effect of the water bath for 20 to 30 minutes before irradiation is better. Long-term treatment of dry skin and desquamation, topical urea cream and other skin creams.

4. Large areas of pigmented sputum are not exposed.

5. Due to individual differences, such as the occurrence of skin photosynthesis reaction, the skin of the irradiated area may have different degrees of redness, blisters, burning or tingling, after treatment can be recovered in a short period of time, generally does not affect the entire course of treatment.

If there is no condition to go to the hospital dermatology phototherapy, you can also buy a home phototherapy device to be treated .