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Key Information That Matters Most in Psoriasis Excimer Treatment

계피부과의원 · 계피부과 Since1961 · March 20, 2025

General itching or skin rashes often appear in folded areas such as the neck, armpits, and inner elbows. However, if white scales and red rashes occur on protruding areas like the...

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This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: 계피부과의원

Original post date: March 20, 2025

Translated at: April 20, 2026 at 5:08 PM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

General itching or skin rashes often appear in folded areas such as the neck, armpits, and inner elbows.

However, if white scales and red rashes occur on protruding areas like the outer elbows, above the knees, or the scalp, you may want to suspect psoriasis.

Psoriasis is not simply a condition caused by dry skin.

And it is different, to some extent, from other skin conditions caused by sweating in hot weather or by a lack of moisture.

It is a skin condition that develops as a result of many different factors intricately intertwined, and even when it seems to improve without notice, it can easily worsen.

In severe cases, the area of the lesions can rapidly expand, and the condition can affect the entire body, leading to various complications.

Therefore, if scales or rashes appear on protruding areas, it is advisable not to delay and to visit a hospital for appropriate treatment.

The following article is for patients with psoriasis.

I hope today's column will be of some help in planning treatment.

  • Today's Column Outline -
  1. Causes of psoriasis (immune system and environment)
  2. Information about psoriasis complications
  3. Psoriasis treatment (psoriasis excimer laser treatment)

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Psoriasis, the Immune System, and the Influence of the Environment

Psoriasis is a skin condition closely related to the immune system.

Normally, our immune system fights harmful substances and bacteria.

However, when this immune system malfunctions, it can attack cells that are working normally and cause various problems.

As a result, skin cells are produced much faster than normal, and thick scales can build up on various parts of the skin.

In addition, if inflammation occurs during this process, red rashes, slight itching, and stinging sensations may also be accompanied.

However, psoriasis is not caused by just one factor.

In particular, psoriasis refers to a weakened skin barrier, and because the skin becomes more sensitive to external irritation, the more it is exposed to dry environments, the more rapidly the symptoms can worsen.

Therefore, along with managing the immune system, you should also pay attention to moisturizing so that the skin can maintain an adequate level of hydration.

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Doesn't psoriasis just go away on its own if you leave it alone?

Psoriasis has the characteristic that the area of the lesions can gradually expand over time.

In particular, it may initially look like small spots, but if it is not treated in time, the lesions can spread across the entire skin.

In addition, as psoriasis progresses, itching becomes more severe, and if you scratch it, the skin may crack and bleeding may occur.

And in this process, as the skin barrier breaks down, the risk of secondary infection may increase.

Psoriasis is also a skin condition that can affect overall health beyond the skin.

In particular, psoriasis is known to be closely related to the joints, and as the symptoms progress, the joints may swell and pain may occur, potentially even leading to changes in the fingers and toes.

In addition, if chronic inflammation caused by psoriasis affects the blood vessels, the risk of developing cardiovascular diseases such as arteriosclerosis, high blood pressure, and myocardial infarction may increase.

Therefore, for the sake of overall health as well, treatment should definitely be planned early.

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Psoriasis Excimer Laser Treatment, What Should You Be Careful About?

The excimer laser treatment we will discuss today is a treatment method widely used for various chronic skin diseases, including psoriasis.

It works by directly irradiating the lesion area with a wavelength of 308 nm.

And because this laser regulates the immune response in the psoriasis area, reduces inflammation, and induces the normal growth of skin cells, you can expect psoriasis symptoms to gradually improve over time.

In addition, because the intensity and range of laser irradiation can be finely adjusted according to the size and condition of the lesions, damage to the surrounding normal skin tissue may be somewhat reduced.

On top of that, because strong energy can be concentrated on the lesion, a faster treatment effect may be expected.

(This may vary depending on the patient's skin condition.)

However, since this is a treatment method that uses laser energy, excessive treatment can cause skin burns, so it is important to receive treatment under the guidance of medical staff.

Also, after psoriasis excimer treatment, the skin may temporarily become dry, so please make sure to manage moisturization carefully.

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Many patients with psoriasis often feel worn out after starting treatment, saying, "Why is it taking so long?"

But psoriasis treatment is not a sprint; it is a marathon that requires long-term management.

Therefore, it may be advisable to continue treatment consistently according to the medical staff's instructions.

And it is most important to proceed with treatment step by step with a long-term perspective.

Please remember that psoriasis treatment is a process for maintaining healthy skin and a healthy life.

I hope today's column was of some help to patients with psoriasis.

Thank you for reading to the end.

| This post was written for informational purposes in compliance with Article 56, Paragraphs 1 to 15 of the Medical Service Act. All treatments carry the risk of side effects and complications depending on the individual. Before treatment, be sure to have a thorough consultation with medical staff who have extensive experience before making a decision. |

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