Blog
41 articles
Hi, I'm a Demodex Mite, and I Leave Inflammation Behind When I Die
A tiger leaves its skin behind when it dies; a Demodex mite leaves inflammation. Here is why Demodex mites, so well-behaved while alive, cause trouble after they die.
Protopic Ointment | You Have to Use It Correctly for It to Work
Here is why Protopic Ointment feels "spicy" when you apply it, why you should stay cool for the first few days, and why you need to apply it twice a day.
Azelia Cream | How to Use It So Fewer People Come in With Side Effects
Azelia Cream needs no prescription, which makes it a good fit for home care. But it can irritate the skin, so how you use it matters. Here is how to use it with fewer side effects.
Acne Ointments | A Comprehensive Guide to All Products in Korea (as of September 2026)
When choosing an acne ointment, irritation is just as important as efficacy. I have categorized all products distributed in Korea and will explain which ointments I recommend and which I do not.
Excel V Results | Results are expected from the first session
Excel V results are most significant when facial flushing is accompanied by telangiectasia. I will explain how to check for this, the procedure process, and immediate post-treatment changes using photos and videos.
New Drug Winlevi Cream Review | A Doctor's 2-Week Experience After 150 Prescriptions
This is a review of Winlevi Cream by a doctor who prescribed it 150 times over a month and a half and used it personally for two weeks. I will discuss why it was satisfactory for patients with sensitive skin, its actual feel, and its efficacy.
Steroid Ointment Side Effects | Two Reasons for Rebound
The core of steroid ointment side effects is the weakening of the skin barrier. A significant portion of steroid ointment rebound occurs due to using unsuitable moisturizers on a compromised skin barrier.
Topical Steroid Ointment Classes | Complete List of All Products Available in Korea as of September 2026
As of September 8, 2026, I have compiled the potency classes of 289 steroid ointments that had supply records within the past year, out of 307 steroid ointments with valid South Korean approval.
Adipam | The Most Suitable Antihistamine for Nocturnal Itching in Atopic Dermatitis
Adipam is an antihistamine I would first consider for atopic patients whose nights are troubled by itching. This article explains how it affects sleep and anxiety, and who should avoid it.
Zyrtec Tab | The most well-balanced over-the-counter second-generation antihistamine
I will explain the advantages of Zyrtec, which I personally consider the most well-balanced antihistamine across the first, second, and third generations, as well as its relationship with Adipam and Xyzal.
Peniramin Tablets | A leading first-generation antihistamine—does it have any advantages over second- and third-generation options?
Peniramin Tablets are a first-generation antihistamine with more drowsiness and anticholinergic adverse effects than second- and third-generation agents. Even so, we will explain why Peniramin Tablets are used for some patients.
Xyzal Tablets (levocetirizine) | An antihistamine often referred to as third-generation, with fewer drawbacks
Xyzal Tablets are an antihistamine often referred to as third-generation, containing levocetirizine—an improved form of cetirizine, the active ingredient in Zyrtec Tablets. We explain the pros and cons compared with other antihistamines.
Allegra tablets (fexofenadine) | The Least Drowsy Antihistamine, Known as a Third-Generation Treatment
Allegra, with fexofenadine as its active ingredient, is one of the most advanced antihistamines available; however, it has the drawback of requiring strict adherence to dosage instructions. We will explain the precautions and other important details to observe when taking it.
Skin symptoms that respond well to antihistamines | Differences between 1st, 2nd, and 3rd generations
Antihistamines are not a cure-all for itching. We explain in which cases they work well, the differences between 1st, 2nd, and 3rd generations, and the side effects of the 1st generation.
Why Acne, Flushing, and Dermatitis Worsen Before Menstruation
To understand premenstrual acne, flushing, and dermatitis, we need to examine estrogen, progesterone, and testosterone together. This article explains hormonal changes and symptom-specific management strategies.
Flushing Lasers | Why They Are Infamously Known for Being Ineffective
Flushing lasers can be effective for telangiectasia, but they cannot treat inflammation or neurovascular hypersensitivity. I’ve summarized why you should check polarized dermoscopy before treatment.
Physical vs. Chemical Sunscreen: What Matters More for Rosacea
If you have sensitive skin, choosing a sunscreen based solely on the difference between physical and chemical filters is insufficient. We provide a detailed explanation on how to select sunscreen when dealing with dermatitis.
Evening Primrose Oil (Evoprim) · Borage Oil and Atopic Dermatitis | Research Findings
There is a medication I frequently see when atopic dermatitis patients show me prescriptions from other clinics. It is Evoprim, which contains evening primrose oil. I have compiled the research findings.
Low-pH Cleanser | If Your Skin Is Sensitive, You Shouldn’t Insist on Only “Gentle” Cleansers
Even if your skin is sensitive, you shouldn’t insist on using only gentle cleansers—and not all low-pH cleansers are gentle, either. I will explain how to choose a cleanser when you have dermatitis.
Vbeam vs. Excel V | Which Is the Best Vascular Laser?
If you’re concerned about facial redness, the lasers you’re probably most curious about are Vbeam and Excel V. Let me explain the two based on clinical evidence.
Ichinon Cream | Why Antihistamine Ointments Can Make Itching Worse
Have you ever applied an antihistamine ointment like Ichinon Cream only to find the itching became worse? The same ingredient works differently when taken orally versus applied topically. We have compiled information on safe alternatives.
Sun Allergy: When Antihistamines Don't Work
Sun allergy is a term that encompasses two distinct conditions with different mechanisms. This article explains why antihistamines are ineffective for PMLE, which accounts for the majority of sun allergies, and outlines treatment and prevention strategies.
Nizoral, Ketoconazole Ointment | Only Effective for These Fungal Infections
Nizoral and ketoconazole ointment are not effective against every fungus. Here is a clear summary of which lesions are caused by which fungi, and which antifungals work best.
Sroban Ointment, Bearoban Ointment | Don’t Use Them for Just Any Folliculitis
Why Folliculitis Doesn’t Improve Even with Sroban Ointment: The Cause May Not Be Bacterial. A doctor who treats dermatitis explains how it differs from Bearoban and how to use it properly.
Facial Atopic Dermatitis Ointments | Comparing 7 Steroid-Free Options
When I ask patients with facial atopic dermatitis which ointments they have tried, many say they avoided steroid ointments out of fear but have tried several non-steroidal products.
Should You Use Tofacitinib Ointment via Direct Purchase? | What Clinical Evidence Says
Tofatas, a tofacitinib ointment, is drawing attention in atopic dermatitis communities. Reports that it is a steroid-free ointment with striking effects and can be ordered from India are spreading quickly.
EASI, SCORAD, EASI75, IGA-TS | Atopic Dermatitis Indicators
EASI and SCORAD are indicators that assess the severity of atopic dermatitis, while EASI75 and IGA-TS measure the effectiveness of treatment. This article explains the criteria for special medical expense exemption and the meaning of each indicator.
Cohort Studies, Meta-Analyses, Systematic Reviews, Clinical Trials | What Should You Trust?
Even when they’re all “study results,” the strength of the evidence differs. Here is a clear summary of what Phase 1–4 clinical trials, cohort studies, meta-analyses, and Cochrane reviews mean—and how strong they are as evidence.
Can Rutinib Ointment Replace Opzelura? | Same Ingredients, Different Realities
Rutinib ointment and Opzelura both contain 1.5% ruxolitinib, so why are they different? We have summarized the differences in clinical evidence and quality control, along with alternative JAK inhibitors available for prescription in Korea.
Anzupgo Cream, Pharmacy Cost 690,000 KRW | Can It Be Used for Atopic Dermatitis?
Anzupgo Cream is Korea's first topical JAK inhibitor. We have summarized its approval for chronic hand eczema, prospects for atopic dermatitis indications, clinical trial results, price, and insurance status.
Sulfur Soap | While Not Bad, Better Alternatives Exist
While sulfur's effects are real, a 30-second wash is insufficient to achieve them. For concerns such as acne, demodex mites, and atopic dermatitis, we introduce evidence-based alternatives that are more robust than sulfur soap.
Is Bepanthen Ointment Truly Gentle? | The Additive Lanolin and Contact Dermatitis
Some people find that Bepanthen ointment, despite being steroid-free, does not suit them. This is due to lanolin, which was named the 2023 'Allergen of the Year.' We will explain who needs to be cautious.
Foods Good for Atopic Dermatitis, Foods to Avoid | Regarding Sugar · Flour · Caffeine
We explain foods that are beneficial and foods to avoid for atopic dermatitis based on research papers. We cover probiotics, vitamin D, dietary fiber, sugar, flour, and the differences in standards for children and adults.
Introduction to Atobarrier MD | Why You Can't Tell If It's Right for You Just by Looking at the Ingredient List
If applying Atobarrier MD makes your skin itchier, it could be a problem with your skin barrier. We provide irritation response data for each of the 4 product lines and a systematic method to reduce trial and error.
Introduction to Zeroid MD | Why Ingredients Lists Alone Can't Predict Compatibility
If Zeroid MD causes itching instead of relief, it may be due to a compromised skin barrier. We provide irritation response data for the four-product lineup and a systematic approach to reducing trial and error.
Elidel Cream: Efficacy and Side Effects | Non-Steroidal Anti-Inflammatory Ointment
A prescribing physician explains the efficacy and side effects of Elidel cream, a steroid-free option. Learn about the advantages and disadvantages of non-steroidal anti-inflammatory treatments and proper usage guidelines.
Soolantra vs. Rozex Gel | Comparing the Effects of Rosacea Ointments
A doctor who treats dermatitis summarizes why many doctors have switched from Rozex Gel, a first-line treatment for rosacea, to Soolantra, the differences in effectiveness, and how to distinguish a die-off reaction from contact dermatitis.
Medical Evidence for No-Moisturizer Treatment | When and Why No-Moisturizer Helps
If your skin worsens the more you apply moisturizer, you may need to consider a no-moisturizer approach. A physician who treats dermatitis explains when no-moisturizer is necessary, how to implement it, and important precautions.
Back-of-hand eczema: How can you tell whether it’s atopic dermatitis or housewife’s eczema?
We have summarized the criteria for distinguishing whether back-of-hand eczema is atopic dermatitis or housewife’s eczema, and how the treatment approach differs. From where it occurs and the pattern of itching to lichenification, we explain it based on evidence.
How Do You Tell Newborn Atopic Dermatitis from Heat Rash? | Key Diagnostic Criteria and What to Do
We have summarized three key criteria for distinguishing newborn atopic dermatitis from heat rash, along with what to do once you have confirmed it. An atopic dermatitis physician explains based on the latest research.
Protopic for Face: Should I Use 0.1% or 0.03%?
When applying Protopic to the face, which concentration is appropriate: 0.1% or 0.03%? This guide covers differences in anti-inflammatory strength, why 0.1% is preferred for adults, and how to reduce initial burning sensations.
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