Global Dermatology - Christophe HSU MD: Dermatologist; Dermatologue

Global Dermatology - Christophe HSU MD: Dermatologist; Dermatologue The Global Dermatology Practice offers clinical services and aims to complement the Global Dermatology Information Portal. Consultations in English.

Located in downtown Geneva behind the Mandarin Oriental Hotel, this dermatology centre is mainly designed to offer medical dermatology services to:
-the non-French speaking expatriate community in Geneva.
-those visiting Geneva. Access:
-By foot: a few minutes walk from Bel-Air (Cité).
-By car-parking: The best option is to park in the parking of the Mandarin Oriental Hotel and to walk up a flight of stairs (one floor).
-By public transport: Stops Isaac Mercier (lines 7, 11 and 15) and Simon-Goulart (lines 11, 15 and 18). PS: We do not give medical advice to non-patients.

Introduction to Eczema (Dermatitis) [Link under comments] -Eczema, also known as dermatitis, is a common condition that ...
10/02/2026

Introduction to Eczema (Dermatitis) [Link under comments]
-Eczema, also known as dermatitis, is a common condition that causes the skin to become dry, itchy, red, and inflamed. -It can affect people of all ages, from infants to older adults, and may come and go over time. Eczema is not contagious, but it can be uncomfortable and sometimes interfere with daily activities and sleep.
-The condition occurs when the skin’s protective barrier does not work as well as it should. This allows moisture to escape and irritants, allergens, and germs to enter the skin more easily. As a result, the skin becomes sensitive and prone to inflammation. Triggers such as soaps, detergents, weather changes, stress, or certain fabrics can make symptoms worse.
-There are several different types of eczema, each with its own causes and features. Some are linked to allergies or asthma, while others are related to skin irritation or environmental factors. Although eczema is a long-term condition for many people, symptoms can usually be well controlled with proper skincare, avoidance of triggers, and medical treatment when needed.
-In the next posts, we will focus on Atopic Dermatitis, the most common form of eczema, including what causes it, how it affects different age groups, and how it can be managed effectively.

Introduction to Alopecia Areata [Link under comments] -Alopecia areata is a condition that causes sudden hair loss, usua...
05/02/2026

Introduction to Alopecia Areata [Link under comments]
-Alopecia areata is a condition that causes sudden hair loss, usually in small, round patches on the scalp or other parts of the body. It occurs when the body’s immune system mistakenly attacks the hair follicles, which slows or stops hair growth. The skin in the affected areas typically looks normal and healthy.
-Alopecia areata can affect people of any age, including children, and it may develop suddenly without warning. The amount of hair loss varies from person to person. Some people lose only a few small patches of hair, while others may experience more widespread hair loss. In many cases, hair regrows on its own over time, although it may fall out again in the future.
-The condition is not contagious and is not caused by poor health or hair care practices. While alopecia areata does not usually cause physical discomfort, it can be emotionally distressing and may affect self-confidence and well-being.
-There is currently no cure, but treatments are available that may help stimulate hair regrowth or reduce further hair loss. A healthcare professional can help assess the condition, discuss treatment options, and provide support and reassurance.

Introduction to Actinic Keratosis [Link under comments] -Actinic keratosis is a common skin condition caused by long-ter...
28/01/2026

Introduction to Actinic Keratosis [Link under comments]
-Actinic keratosis is a common skin condition caused by long-term exposure to sunlight. It appears as rough, dry, or scaly patches on the skin that may be skin-coloured, red, or brown. These areas can feel gritty or sandpaper-like and are often easier to feel than to see. Actinic keratoses usually develop on sun-exposed areas such as the face, ears, scalp, neck, forearms, and hands.
-This condition is most often seen in older adults and in people who have spent many years outdoors, but it can also occur in younger individuals with significant sun exposure. People with fair skin, light hair, or a history of sunburns are at higher risk.
-Actinic keratosis is considered a precancerous skin change. While many patches remain harmless, a small number can develop into a type of skin cancer called squamous cell carcinoma if left untreated. For this reason, early detection and treatment are important.
-Treatment options are usually straightforward and may include freezing the spot, applying prescription creams, or other minor procedures. Protecting the skin from further sun damage—by using sunscreen, wearing protective clothing, and avoiding excessive sun exposure—can help prevent new lesions and reduce the risk of progression.

Introduction to Age Spots [Link under comments] -Age spots, also known as liver spots or sun spots, are flat, brown, gre...
21/01/2026

Introduction to Age Spots [Link under comments]
-Age spots, also known as liver spots or sun spots, are flat, brown, grey, or black marks that appear on the skin as we get older. They are very common and usually develop on areas of the body that are most exposed to the sun, such as the face, hands, shoulders, arms, and upper chest.
-These spots are caused by years of sun exposure, which leads to an increase in pigment (melanin) in certain areas of the skin. Although they are more common in adults over the age of 40, age spots can appear earlier in people who spend a lot of time in the sun or use tanning beds. People with lighter skin tones tend to develop age spots more easily, but they can occur in all skin types.
-Age spots are harmless and do not require medical treatment. However, some people choose to have them checked or treated for cosmetic reasons or because they are concerned about changes in their skin. It is important to have any new, changing, or unusual spots examined by a healthcare professional to rule out more serious skin conditions.
-Protecting the skin from sun exposure by using sunscreen, wearing protective clothing, and avoiding peak sun hours can help prevent new age spots from forming and stop existing ones from becoming darker.

Introduction to Acne Vulgaris [Link under comments] -Acne vulgaris, commonly known as acne, is a very common skin condit...
14/01/2026

Introduction to Acne Vulgaris [Link under comments]
-Acne vulgaris, commonly known as acne, is a very common skin condition that affects people of all ages, but it is especially common during the teenage years and young adulthood. It occurs when the pores of the skin become blocked with oil, dead skin cells, and sometimes bacteria. This can lead to the development of blackheads, whiteheads, pimples, and in some cases deeper, painful lumps under the skin.
-Acne most often appears on the face, chest, back, and shoulders—areas of the body that have a higher number of oil-producing glands. Hormonal changes, such as those that occur during puberty, menstruation, pregnancy, or times of stress, can increase oil production and make acne more likely. Other factors, including genetics, certain medications, skincare products, and lifestyle habits, may also play a role.
-While acne is not a dangerous condition, it can be frustrating and may affect a person’s confidence and emotional well-being. If left untreated, some forms of acne can lead to scarring or long-lasting skin changes. The good news is that acne can usually be managed effectively with proper skincare, lifestyle adjustments, and medical treatments when needed. Early assessment and treatment can help control breakouts and reduce the risk of complications.

Skin Cancer Prevention [Link under comments] -Skin cancer can develop as a result of sun exposure — either through chron...
08/01/2026

Skin Cancer Prevention [Link under comments]
-Skin cancer can develop as a result of sun exposure — either through chronic, long-term exposure leading to non-melanoma skin cancers (such as basal cell carcinoma and squamous cell carcinoma), or through repeated intense UV exposure, which increases the risk of melanoma. Even before cancer appears, sun damage can cause premature skin aging and precancerous changes. Prevention relies on smart sun habits combined with regular and correct sunscreen use.

In this video, dermatologists explain practical, evidence-based strategies to protect your skin and lower your risk of skin cancer.

You’ll learn how to:
☂️ Reduce sun exposure by seeking shade and understanding reflection from water, sand, and snow
👒 Choose protective clothing and wear a wide-brimmed hat
🧴 Apply sunscreen correctly and consistently
💊 Maintain healthy vitamin D levels safely
🌞 Use self-tanners instead of UV exposure
🚫 Avoid tanning beds
🔍 Detect skin cancer early through regular skin checks

These dermatologist-backed recommendations can help protect your skin, slow sun-related aging, and support early detection of skin cancer.

Psoriasis Skin Care Guide [Link under comments]-Psoriasis is a common chronic skin condition that affects about 2% of th...
30/12/2025

Psoriasis Skin Care Guide [Link under comments]
-Psoriasis is a common chronic skin condition that affects about 2% of the population. While medical treatment prescribed by a dermatologist is essential, daily skin care habits also play a key role in managing symptoms and reducing flare-ups. In this video, dermatologists share practical, evidence-based advice to support psoriasis care alongside medical treatment.

You’ll learn how to:
🛡️ Avoid skin injuries that can trigger flare-ups
☀️ Protect your skin from sunburn
💊 Follow your prescribed treatment consistently and correctly
❄️ Reduce itching with cold compresses
🧴 Use medications as directed
💧 Apply moisturizers during the day and thicker creams or ointments at night

These dermatologist-recommended tips can help soothe irritated skin, reduce itching, and support healthier skin for people living with psoriasis.

Hair Styling Without Damage [Link under comments] -Hair loss and changes in hair texture are common concerns and can som...
23/12/2025

Hair Styling Without Damage [Link under comments]
-Hair loss and changes in hair texture are common concerns and can sometimes be linked to everyday styling habits. While styling can enhance appearance, certain techniques and tools may weaken hair over time if not used correctly. In this video, dermatologists share practical, science-based advice on how to style your hair while minimizing damage.

You’ll learn how to:
�💇 Identify hair styling habits that can contribute to hair loss�
💨 Dry your hair properly to reduce breakage�
🪮 Comb and brush your hair gently and effectively�
🧴 Understand the risks of products that promise long-lasting hold�
🔥 Use heat-styling tools such as blow dryers, curling irons, and flat irons more safely�
🎀 Know whether styles like ponytails, braids, cornrows, or hair extensions can affect hair health

These dermatologist-backed tips can help protect your hair, reduce breakage, and maintain healthier hair while still enjoying your styling routine.

Frostbite: Prevention and Treatment [Link under comments]-When temperatures drop below freezing, the risk of frostbite i...
18/12/2025

Frostbite: Prevention and Treatment [Link under comments]
-When temperatures drop below freezing, the risk of frostbite increases significantly. Frostbite most commonly affects exposed areas such as the face, nose, ears, fingers, toes, and feet. Knowing how to prevent frostbite — and how to respond early — can help protect your skin and prevent serious injury. In this video, dermatologists share practical, safety-focused guidance for cold weather conditions.

You’ll learn how to:
🧥 Dress in three loose layers to regulate body temperature
💧 Choose a moisture-absorbing base layer to keep skin dry
🧊 Use insulating and windproof outer layers
🧦 Protect your feet with two layers of socks
🧢 Wear a hat, scarf, or mask to shield the head and face
🧤 Protect hands with gloves and keep snow from penetrating clothing
🚰 Stay hydrated and avoid alcohol in cold conditions
🥶 Recognize early signs of frostbite such as redness, burning, tingling, and numbness
🔥 Rewarm affected skin safely — without rubbing — and know when to seek medical care

These dermatologist-recommended tips can help you stay safe in cold weather and reduce the risk of frostbite and long-term skin damage.

How to Prevent Skin Conditions in Athletes [Link under comments]-Athletes are at higher risk for developing skin infecti...
11/12/2025

How to Prevent Skin Conditions in Athletes [Link under comments]
-Athletes are at higher risk for developing skin infections because close physical contact, shared equipment, and warm, humid environments make it easy for germs to spread. These infections — including bacterial, viral, and fungal conditions — can pass quickly from one teammate to another. In this video, dermatologists share practical, effective steps athletes can take to protect their skin and reduce infection risk.

You’ll learn how to:
🩹 Clean and cover cuts or scratches before training
🔍 Perform regular skin checks and protect blister-prone areas
💧 Keep the skin dry with moisture-absorbing clothing
👟 Reduce blistering by choosing proper footwear and alternating shoes
🚿 Shower after each training session using antimicrobial soap
🩴 Wear flip-flops or sandals in public areas and locker rooms
🧼 Avoid sharing towels or personal items and wash training gear after each use
🧽 Disinfect sports equipment daily

These dermatologist-backed tips help athletes stay healthy, reduce infection risk, and maintain safer training environments.

Shaving Guide: Maybe You Didn’t Know -Shaving is part of many people’s grooming routine — for both men and women — yet e...
04/12/2025

Shaving Guide: Maybe You Didn’t Know
-Shaving is part of many people’s grooming routine — for both men and women — yet even the most familiar habits can be improved. With the right approach, you can reduce irritation, prevent bumps, and keep your skin smoother and healthier. In this video, dermatologists share practical, science-based tips to help you shave comfortably and safely.

You’ll learn how to:
🧼 Decide whether to wash before or after shaving
😌 Reduce irritation with proper technique and preparation
⚡ Understand when an electric shaver may be beneficial
🔍 Adjust your shaving routine if you have acne

These dermatologist-backed insights can help protect your skin, prevent common shaving problems, and make your daily routine more effective and comfortable.

How to Wash Your Face [Link under comments]-Washing your face is part of most people’s daily routine — so automatic that...
28/11/2025

How to Wash Your Face [Link under comments]
-Washing your face is part of most people’s daily routine — so automatic that it’s easy to overlook the small details that can make a big difference for your skin. With the right approach, cleansing can help improve your skin’s appearance while reducing irritation. In this video, dermatologists share six simple, effective tips for washing your face the right way.

You’ll learn how to:
🫧 Cleanse your face gently and correctly
⏰ Know how often you should wash to avoid dryness or irritation
🌿 Choose products and techniques that minimize skin sensitivity
🧴 Understand when and how to apply moisturizer afterward

These dermatologist-approved steps can help keep your skin clean, calm, and healthy — all while supporting a simple, effective everyday routine.

Adresse

Boulevard James Fazy 4
Geneva
1201

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