1. Is excimer laser treatment painful? How long does one treatment take? How many total treatments are required?

During the treatment, the patient generally has no feeling or only a slight feeling of heat. , no pain; it takes about 2 minutes to treat a skin lesion as big as the palm of your hand. The treatment is usually performed 1 to 2 times a week. The total number of excimer laser treatments varies greatly depending on the individual and the disease. Vitiligo requires an average of about 20 treatments, and psoriasis generally requires less than 10 treatments.

2. Can my child be treated with excimer laser when he is only 1 and a half years old? Are there any side effects?

Excimer laser is suitable for all ages from infants to the elderly. The patient had safely undergone excimer laser treatment on a 3-month-old child, and no obvious side effects were found based on domestic and foreign usage.

3. My vitiligo is on my eyelids and scrotum. Can excimer laser treatment be used on this location?

Excimer laser can be safely used on eyelids, lips, and external surfaces. Treatment of special parts such as reproductive period and perianal area.

4. I have a palm-sized patch of vitiligo on my back that has a history of 20 years. I have tried various treatment methods but all are ineffective. Is excimer laser treatment still effective for such a long-term medical history?< /p>

The earlier vitiligo is treated, the higher the cure rate. As time goes by, there will be fewer and fewer melanocytes remaining in the white spots. The effective rate of treatment will decrease with the extension of the course of the disease. The effective rate will decrease with longer medical history and more will be needed. number of treatments.

5. What are the reactions after excimer laser treatment? Will it affect work?

After excimer laser treatment, there will be local erythema. The erythema will last for 24 to 48 hours and will not affect work. and learning.

6. Can pregnant women and expectant mothers preparing for pregnancy use excimer laser treatment?

The essence of excimer laser is light. Unlike X-rays, it cannot penetrate the skin and affect the fetus. , and will not affect the physiological functions of the whole body, so it can be used safely by pregnant women and expectant mothers.

7. What are the advantages of the excimer laser treatment system compared with traditional treatments?

Compared with traditional treatments, the biggest advantages of laser treatment are rapid, long-lasting effects and safety. Traditionally, UVB is used to treat psoriasis a lot. UV phototherapy usually requires about 30 to 50 treatments, which is accompanied by many side effects and a short relief period. Laser only requires 10 treatments in one course. Obviously effective. The longest remission period is more than 3 years. For Bai Dianfeng, traditional internal and external drug treatments are basically difficult to guarantee the effect. UV phototherapy often requires hundreds of treatments, and the efficacy is relatively limited, while laser only requires 2 to 4 courses of treatment to achieve 75% Complete clearance rate above.

8. Are there differences in excimer treatment?

There are individual differences in excimer laser treatment of vitiligo. It is related to the following factors: skin color (skin type), time of skin damage (generally, those with a short onset time recover faster), skin damage location (the head, face and trunk have the best treatment effect, followed by the limbs, the back of the fingers, palms and soles of the feet are less effective) Treatment also requires more sessions than on the head and face). When excimer laser treats psoriasis, there is little individual difference, but there are also slight differences in the location of the skin lesions (the head, face, and trunk are better than the limbs).

9. What is the reason for the difference in therapeutic effects in different parts of the body?

The direct cause of the formation of vulgaris is the death of melanocytes in white spots due to immune killing by T lymphocytes. T lymphocytes need to identify the identity of the killing target when performing immune killing. In other words, T cells specifically identify and kill melanocytes. There are primitive melanocytes in human hair follicles that do not express melanocytes. The characteristic markers of melanocytes can generally escape the killing of T cells. The recovery of white spots requires excimer laser to stimulate the remaining melanocytes in the original state to grow into functional mature melanocytes to restore the white spots. This also This is the reason why white pigment islands often appear around the sweat pores first during recovery, and then the islands expand and finally recover. The reason why different parts of the body respond differently to treatment is related to the distribution density of hair follicles in different parts of the human body, the type of hair follicles, It is related to the blood supply to the skin and other reasons. The palms of the hands and soles of the feet do not have hair follicle structures and are therefore the most difficult to treat. Treatment of psoriasis varies little throughout the body.

10. Is the excimer laser treatment system safe? Will it hurt the skin?

Excimer laser treatment of skin diseases is very safe and has been approved by the US FDA and my country's SFDA. , and there have been no reports of any adverse reactions, and there is no risk of cancer. Its square spot can avoid laser irradiation of normal tissue and minimize damage to normal skin.

11. Is there any possibility of side effects?

During treatment, there is only a slight burning sensation in the irradiated area. Some patients may feel that there is a burning sensation in the affected area a few hours after treatment. A little pain (similar to a mild sunburn). For patients with psoriasis, there may be some erythema or short-term pigmentation after surgery (recoverable). There are almost no side effects for patients with Baidianfeng. Occasionally, minor blisters may occur due to the increased energy.

12. Will excimer laser cause skin cancer?

Traditional phototherapy, especially the use of UVA (PUVA) or UVB, has been reported to cause skin cancer. From the earliest research to the present, there have been no reports of 308 excimer laser inducing skin cancer.

13. In addition to vitiligo and psoriasis, what other diseases can the molecular laser treatment system treat?

Excimer laser is licensed to treat vitiligo and psoriasis. More and wider applications have been verified by the clinical practice of doctors at home and abroad, including various depigmentation diseases such as atrophic scars, stretch marks, palmoplantar pustulosis, alopecia areata, infant eczema, neurodermatitis and other difficult diseases. Treat skin diseases.

14. Can it be used on babies?

Excimer laser can be safely used on people of all ages from babies to the elderly.

15. What is the difference between the 308 excimer laser and the excimer laser used to treat myopia in ophthalmology?

There are many types of excimer lasers, such as ArF (193nm), KrCl (233nm), KrF (248nm), XeCl (308nm), XeF (353nm), etc. Ophthalmology generally uses 193nm ArF and 248nm KrF. Different excimer laser selections are selected based on laser characteristics and treatment purposes.

1. Xenon chloride gas; 2. Excitation electric field; 3. Reflective plate; 4. Semi-transparent reflecting plate; 5. Excimer laser beam;