Dermatology Insights
Clear, practical guidance from Dr Serena Peng on skin, hair and nail health, skincare, aesthetic treatments and sexual health.
Recurring Hives: How Do You Find the Cause?
With recurring hives, the frustration often goes beyond the itch to not knowing the cause. The pattern, duration, and possible triggers can provide useful clues.
Asteatotic Eczema: When Dry Skin Becomes Inflamed
Learn why cold weather can trigger dry, cracked and itchy skin, and how to protect its barrier.
Syphilis III: Beyond a Positive Test
Treatment is only the beginning. Follow-up testing is essential after syphilis.
Syphilis II: The Silent Infection
No symptoms doesn’t mean no syphilis. Know how it spreads, when to test, and why screening matters.
Syphilis I: The Great Imitator
A sudden painless rash or lesion? Syphilis may not always look the way you expect.
Socks, Laundry and Fungal Infections: A Practical Guide
Can laundry spread fungal infections? Practical advice on socks, washing and athlete’s foot.
Thermage, Ultherapy, RF Microneedling or Fillers: Which One Do You Need?
How Thermage®, Ultherapy®, RF Microneedling and Fillers Address Different Aspects of Aging
Cat Allergy: Beyond the Test Result
A positive test is only part of the story. Here’s what really matters in cat allergy.
Allergic Contact Dermatitis: The Role of Mango Peel
Not every rash after eating mangoes is a food allergy. Mango peel and sap can trigger allergic contact dermatitis, a delayed skin reaction that is often overlooked.
When Seafood Causes a Rash—and When It Doesn’t
Is Seafood Really the Culprit? What every dermatologist wants you to know about seafood and skin reactions.
Hives and Diet: What Really Matters?
Most hives aren’t caused by food allergies. Here’s what you need to know about histamine-rich foods, histamine release and pseudoallergens.
When Dark Circles Aren’t Really About Skincare
That Painful Spot on Your Foot: Corn or Plantar Wart?
In some cases, the corn is not the problem itself, but a clue to the forces that created it.
Red Light, Blue Light, IPL and Laser: What’s the Difference?
Not all light treatments work the same way. The key is matching the right wavelength to the right condition.
Red Light Therapy: Is It Worth the Hype?
Red light therapy is everywhere. The science is real. The hype is, too.
Is Your Sunscreen Really Protecting You? 6 Common Myths
6 sun protection mistakes dermatologist want you to stop making.
Shingles Vaccine: Who Should Pause and Check First?
The shingles vaccine may reduce the risk of nerve pain, but timing and suitability should be evaluated individually.
Sensitive Skin: Do Less First
When Your Skin Is Sensitive, Don’t Rush to Repair: 7 Things That May Make It Worse
Vitiligo: Beyond Appearance
Vitiligo is one of the most visible skin conditions — and often, one of the most misunderstood.
Not Just a Bump: Understanding HPV Skin Infections
HPV is not just about cervical cancer. From common warts to oral and genital infections, it can affect both skin and mucosal areas.