Dermatology

skin disease

At Jongno Yonsei, we treat skin diseases such as epidermal cyst removal, atopy, shingles, eczema & athlete's foot, warts & milia, and tattoo removal.

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psoriasis

Psoriasis is a chronic inflammatory skin disease that is covered with silvery-white scales and causes recurring rashes on the skin all over the body.
Symptoms and Treatment

athlete's foot

Athlete's foot is a disease that occurs when mold (fungus) infects the stratum corneum, the outermost layer of the skin, nails, or hair.
Symptoms and Treatment

eczema

Simply put, eczema refers to chronic dermatitis caused by any cause. Itching, blisters, scales, and pigmentation appear.
Symptoms and Treatment

ingrown toenail

It is one of the most commonly seen nail diseases and mainly occurs in the big toenail. It refers to a disease in which the toenail digs into the flesh, causing inflammation and pain.
Symptoms and Treatment

atopy

Atopic dermatitis is a chronic, recurrent inflammatory skin disease that usually begins in infancy or childhood and is characterized by pruritus and dry skin.
Symptoms and Treatment

mantis

Infection with the human papilloma virus occurs in the skin or mucous membranes, causing excessive proliferation of the epidermis, which clinically appears as papules with a bumpy surface.
Symptoms and Treatment

shingles

Shingles is a disease that occurs when the varicella-zoster virus (VZV), which usually causes chickenpox in childhood, remains dormant in the body and then becomes active again.
Symptoms and Treatment

corn

Corns are a condition in which the skin of the hands and feet is continuously mechanically stimulated, causing a small area of dead skin cells to proliferate and become embedded in the skin in a cone shape.
Symptoms and Treatment

hives

Hives are a skin disease in which the skin temporarily swells red or white and is accompanied by severe itching due to increased permeability of blood vessels in the skin or mucous membrane.
Symptoms and Treatment

milia

Milia are yellow cysts (pouches) that look like grains of rice and are about 1 mm in size and occur in shallow areas of the skin. They are caused by excessive proliferation of the epidermal components of the stratum corneum and dermis.
Symptoms and Treatment

keloid

Normal scars are the result of wound healing, but if this process occurs abnormally and becomes a hypertrophic scar, it is called a keloid (hypertrophic scar).
Symptoms and Treatment

Han Gwan-jong

Hangiomas are benign tumors that occur in the eccrine glands distributed throughout the body. They commonly occur in women after puberty and are more common in Asians.
Symptoms and Treatment

scar removal surgery

Skin that has undergone trauma or surgery generally leaves scars, and once scars appear, they do not disappear easily even with treatment.
Symptoms and Treatment

tattoo removal

Tattoo refers to leaving a permanent color by infiltrating colored substances into the skin.
Symptoms and Treatment
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Psoriasis is a chronic inflammatory skin disease in which red papules or plaques of various sizes, covered with silvery-white scales and with clear boundaries, repeatedly occur on the skin of the entire body.
The main sites of occurrence are elbows, knees, hips, scalp, or anywhere on the skin of the body. At first, a small rash appears, and white, dandruff-like dead skin cells pile up on top of the rash area. Hyperproliferation of the stratum corneum becomes the main pathological mechanism.

Applying topical steroids is the basis of treatment, and if symptoms are severe or systemic, oral medications may be prescribed, and in some cases, laser treatment or simple surgery may be performed.

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Athlete's foot is the most common ringworm in Korea and occurs frequently in adults. Foot athlete's foot (tinea pedis) often occurs between the toes or on the heels. Mainly, the skin between the toes becomes swollen, becomes white due to moisture, cracks, and exfoliates.
Excessive sweating can lead to unpleasant foot odor and sometimes itching. Toenail fungus is much more difficult and takes longer to treat than foot fungus.

It is common to treat athlete's foot by applying antifungal ointment, which can be applied to the lesion and surrounding area once or twice a day.
Even if everything seems to have healed, continuing to apply more for 2 to 3 weeks will help prevent recurrence.
If symptoms are severe, you may need to take antifungal medication.
If there is acute inflammation or a secondary bacterial infection occurs, antibiotics should be administered or applied after consultation with a doctor.
Recently, laser treatment can also be used to reduce the time. Be sure to receive appropriate prescriptions after consulting a doctor.
In the case of toenail fungus, oral medication treatment is essential and long-term treatment of more than 6 months is necessary, and these days, improvement is possible with laser treatment.

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Looking at skin symptoms, in the early stages, itching, blisters, papules, erythema, and swelling are observed. In the chronic stage, swelling and blisters are reduced, but skin wrinkles become more prominent, skin becomes thicker, such as lichenification, scales, and pigmentation.
Usually, the itching is severe and in severe cases, oozing may occur, and the more you scratch, the worse the symptoms become.

To treat eczema, you must essentially remove yourself from the environment that causes eczema.
This is because hospital treatment is intended to return abnormal eczema to the skin it used to be, not to make the skin more resistant to water or detergents.
Therefore, eczema cannot be treated if you repeat housework after treatment so that your hands do not dry out, or if you continue to irritate the skin with detergents, etc.
If it gets dry, eczema gets worse and moisturizing is very important, so apply moisturizing cream or ointment frequently.

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It is one of the most commonly seen nail diseases and mainly occurs in the big toenail. It refers to a disease in which the toenail digs into the flesh, causing inflammation and pain.
At first, the outside or inside of the big toe becomes slightly red, swollen, and feels mild pain. Soon, as friction intensifies, it becomes more swollen, oozes, granulation tissue (a lump of inflammation, blood vessels, and fibrous tissue) proliferates, and the area around the toenail grows. It starts to fester.
As the disease progresses, the smell becomes strong, the pain becomes severe, and normal walking becomes difficult.

First, the sides of the ingrown nail plate are removed and the marginal skin covering the nail is removed. To prevent recurrence, the ingrown nail plate is excised vertically, and the nail matrix is also excised or electrocautery using high frequency or laser is performed to prevent the toenails from growing at the edges. .

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Chronic severe itching, dry skin, and dermatitis (eczema) are the main symptoms.

To effectively treat atopic dermatitis, moisturizing dry skin is very important. Topical steroids and local immunomodulators (calcineurin inhibitors) are the main treatments, and antihistamines are also commonly used to suppress itching. In addition, multifaceted and systematic treatment is needed to avoid allergens, irritants, and stress that worsen or cause skin symptoms. Individualized treatment should be performed according to the patient's characteristics. Long-term treatment is required, so drugs that can be administered for a long period of time Treatment should be focused on:

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1) Common warts are the most common type, and papules of various sizes with a rough, raised surface appear on the backs of the hands, around the nails, face, lips, and ears. It is commonly observed in children, and as adults, the frequency of occurrence decreases and the number of lesions decreases. As we age and our immunity declines, it tends to increase again.

2) Flat warts appear as small, flat papules on the surface, and individual lesions may combine to form an irregular plate. It commonly occurs in children and young adults, and occurs most commonly on the forehead, chin, nose, mouth, and back of the hands. Although it is difficult to treat, the frequency of natural healing is high.

3) Warts on the palms and soles of the feet Plantar warts may look like corns because they are pressed by body weight, but in reality, it is not easy to distinguish between plantar warts and corns or calluses. If you scrape and observe the stratum corneum on the surface and see multiple black dots or petechial hemorrhages caused by capillaries, it can be diagnosed as a wart. Unlike corns, they often occur regardless of the area in contact with shoes or the area on which weight is placed, and they tend to cluster in groups and move around.

4) Genital warts and condyloma acuminata are common adult diseases, and skin lesions usually appear 2 to 3 months after sexual intercourse. In men, it often appears in the furrows covered with the foreskin of the penis, the entrance to the urethra, and around the anus, and in women, it often appears in the vulva, cervix, perineum, and anus. Warts can also occur on mucous membranes other than the genitals. Initially, it starts as a small papule with a shiny surface, but over time, the papules gather together and form a chicken crest shape.

Most wart treatments currently used have a cure rate of approximately 50 to 601 TP3T and an average recurrence rate of 20 to 501 TP3T. There are several treatments for warts, which can be selected depending on the location, size, and number of warts, the patient's age, and immune status. Applying a keratolytic agent or a mixture of salicylic acid and 5-fluorouracil (5-FU) to the lesion is usually the first method tried. Continuous treatment is required for complete cure, and methods such as applying a bandage after applying medication can increase the treatment effect. Electrocautery, laser, and cryotherapy are common and simple methods, but their disadvantages are that they can leave scars and have a high recurrence rate.

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Severe pain or paresthesia may appear on one side of the body, and blisters may appear on the skin. Depending on the location of the disease, symptoms may include headaches, difficulty breathing, stomach pain, numbness in the arms and legs, and muscle pain. However, if there are no blistering lesions in the beginning, itching, stinging, and muscle pain are often mistaken for muscle pain or other internal organ diseases, so tests are performed at a clinic other than a dermatology department or the patient is often treated for a few days.
If a blister appears, you can immediately tell if it is this disease. If a blister appears, it is recommended to see a dermatologist. When a blister appears, it turns into a pus-filled blister within 3 days, and after a week, a scab forms and heals. In some cases, all skin lesions have improved, but only tingling nerve pain symptoms remain. This symptom is called postherpetic neuralgia and may require long-term treatment.

The treatment for this disease is the administration of antiviral drugs. Most cases are cured by injecting or taking antiviral drugs within 3 to 5 days of the blisters for about a week. Depending on the symptoms, painkillers and antihistamines may be administered. However, if treatment is started late, the patient is elderly, or has a chronic underlying disease, pain in the relevant area may continue even after drug treatment. The duration of postherpetic neuralgia depends on the patient's condition, but may last from a month to a year, and in some cases, may last longer.
Almost all of the antiviral drugs are excreted through the kidneys, so the dosage must be adjusted in patients with renal failure. In particular, if the pain is severe, it often progresses to post-herpetic neuralgia, so other procedures such as strong painkillers or nerve blocks may be needed. This disease cannot be transmitted by coming into contact with someone who has shingles. However, it is recommended to isolate people who have never had chickenpox before, children, or patients hospitalized because it can cause illness.

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Corns are painful when pressed from above, and if they occur on the soles of the feet, they may become inflamed or pus may fill the area, making it difficult to walk due to severe pain.
Depending on the degree of hardness, corns can be roughly divided into hard corns, which are hard, and soft corns, which are relatively soft. Hard corns are more common than soft corns and can occur on any part of the body where pressure is applied, but are most common on the hands and feet. When the top of the corn is shaved off, the nucleus appears in the densest part of the lesion.
You may also feel a dull sensation or pain in the area of the corn. If corns are not treated, they may cause pain when walking, blisters, bleeding, ulcers, or inflammation.

Treatment for corns and calluses is similar; it is helpful to be careful not to apply friction or pressure to the skin, and to reduce pressure by wearing comfortable shoes that fit your feet or using pads.
It is not easy to completely treat corns or calluses. Therefore, use salicylic acid, lactic acid liniment, corns, etc. that partially dissolve dead skin cells, and when the dead skin cells become soft, carefully scrape them off with a clean razor blade and disinfect them. In addition, cryotherapy can help improve the symptoms of corns. For deep and large corns, laser treatment or surgical treatment can be performed. In the case of soft corns, in addition to applying a keratolytic agent, surgical treatment to cut the corns can be performed. However, if the cause of the corns is not removed, they often recur. If it is caused by bone protrusion, removing the protruding bone is helpful for treatment.

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The skin swells rapidly, accompanied by severe itching, and the skin symptoms disappear within 3 to 4 hours and then reappear in another location. In most cases, each skin change disappears within 12 to 24 hours, but in some cases, such as urticaria vasculitis or papular urticaria, it may last for more than a day. Cholinergic urticaria, which appears when body temperature rises, is characterized by the fact that it occurs at a size of several millimeters, much smaller than typical urticaria, and is often accompanied by pain.

If you have swelling around your eyes or lips when you have hives, it may be accompanied by angioedema, and may be accompanied by digestive symptoms such as abdominal pain, nausea, and vomiting, or respiratory symptoms such as hoarseness and difficulty breathing. Hives and angioedema can occur anywhere on the body. In particular, angioedema mainly appears on the face, arms, and legs, and the symptoms appear as burning or tingling rather than itching, and the symptoms may last for several days. Angioedema around the mouth may progress to an emergency, so prompt treatment is required.

The first-line medications for hives are second-generation antihistamines, which have fewer drowsy side effects. Especially in the case of chronic urticaria, antihistamines should be appropriately selected and taken regularly at the lowest dose that completely controls urticaria symptoms. The goal of hives treatment is to keep you symptom-free while maintaining your regular medication regimen. For severe urticaria that cannot be controlled even with increased doses of antihistamines, immunosuppressants such as leukotriene inhibitors, cyclosporine, and monoclonal antibodies against IgE may be considered. Additionally, if hives worsen acutely and rapid symptom control is required, corticosteroids can be taken for a short period of time, within 1 to 2 weeks.

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White or yellow, millet-shaped skin lesions measuring approximately 1 mm occur singly or multiplely. Primary lesions commonly occur on the face, especially the cheeks and eyelids, and occur at any age. Secondary lesions have the same appearance as primary lesions and often occur where the skin has been damaged.

A hole is made in the surface with a needle or carbon dioxide laser, and the contents are extracted using a cotton extruder.

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Keloids clinically appear as skin-colored, hypopigmented, or erythematous nodules with a hard, smooth surface. Unlike hypertrophic scars, they can infiltrate beyond the original wound area and into the surrounding normal skin. Accompanying symptoms include itching and tenderness, and according to one clinical study, about half of patients experienced itching and pain in 80%.

Local steroid injection therapy is used to treat keloids. It is not completely cured with one treatment, but periodic injection treatment is required whenever symptoms worsen.

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It appears as a skin-colored or reddish-brown papule measuring 1 to 3 mm raised above the skin. It is usually asymptomatic and causes cosmetic problems in most cases. It commonly appears around the eyes.

Treatment is usually performed for cosmetic purposes, but even to this day, the treatment of hanguanoma is unsatisfactory. Treatments include removal of lesions through CO2 laser, Er:YAG laser treatment, TCA peeling, and electrocautery. Treatments such as topical application of atropine have also been recently reported. However, lesions are often removed incompletely, may recur even after removal, and may leave surgical scars.

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If you have pitted acne marks or old scars that have healed unevenly, you can undergo scar removal surgery.

The tissue is removed using the Co2 shouldering technique and then filled with a hyaluronic acid filler formulation. Smooth treatment with the most natural and soft lines. Multiple treatments may be required.

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If a long time has passed since applying semi-permanent makeup such as eyebrows or eyeliner, the tattoo may become blurred or the line may change, requiring tattoo removal. In addition, there may be cases where tattoos on the body need to be erased. We also perform a lot of tattoo removal treatments before going to the military or taking civil service exams.

The pico laser quickly removes pigment from lesions. It often requires 5 to 10 treatments at monthly intervals.