Dermatology

Poison Ivy Plant Identification: Leaves of Three, Let It Be

April 17, 2026

Close-up of poison ivy plant with green three-leaf clusters in sunlight

The Leaves of Three RuleThe most widely known identification tip for poison ivy is accurate as far as it goes. Every leaf on a poison ivy plant consists of three leaflets [...]

SPF and Sun Allergies: How to Choose Sunscreen When UV Triggers Your Skin

April 17, 2026

Smiling woman with sunscreen on her cheeks, shielded by a protective bubble deflecting UVA and UVB rays

Understanding Sun Allergies and PhotosensitivityThe sun feels like an enemy when your skin erupts in hives, rashes, or burning sensations after just minutes of exposure. For [...]

Skin Tag Removal: Safe Methods, Costs, and What to Expect

April 17, 2026

Dermatologist removing a skin tag from a woman's neck with an electrocautery pen

Understanding Skin Tags and When to Seek RemovalThat small, soft piece of skin hanging from your neck or armpit probably bothers you more than it should. Skin tags are [...]

Poison Oak Rash: How It Differs from Poison Ivy and How to Treat It

April 17, 2026

Close-up of a forearm showing a streaky red rash with small blisters consistent with an urushiol contact reaction.

What Makes Poison Oak Different From Poison IvyThe two plants belong to the same genus (Toxicodendron) and cause identical reactions, but they look and grow differently. [...]

Skin Barrier Repair: How to Rebuild Your Skin After Winter and Sun Damage

April 17, 2026

Smiling woman in a white robe and hair towel applying face cream while looking in the bathroom mirror

Understanding the Skin BarrierDry, flaky patches that sting when touched by products. Redness that appears without warning. Skin that feels tight no matter how much [...]

Poison Ivy Rash Spreading: Why It Happens and How to Stop It

April 17, 2026

Worried woman scratching a red itchy poison ivy rash on her arm

Why Poison Ivy Rashes Appear to SpreadWatching new patches of itchy red bumps develop days after your initial exposure is alarming, especially when you have not been back [...]

Skin Cancer on the Scalp: Why This Hidden Area Is High-Risk

April 17, 2026

Doctor examining a patient's scalp with a digital scanner

The Unique Vulnerability of the ScalpMost people apply sunscreen to their face, arms, and shoulders without giving their scalp a second thought. This oversight has serious [...]

What Is a Skin Specialist? When to See a Dermatologist vs. Primary Care

April 17, 2026

Doctor in a white coat with a stethoscope pointing a pen at an anatomical model showing the layers of human skin and hair follicles

What a Dermatologist IsA dermatologist is a physician who specializes in the diagnosis and treatment of conditions affecting the skin, hair, and nails. The training pathway [...]

UV Reading Explained: What the Numbers Mean for Sun Safety

April 17, 2026

Understanding UV Readings and Sun SafetyThe UV Index appears in weather apps alongside temperature and precipitation, yet most people glance past it without knowing what it [...]

Retin-A Cream: Uses, Side Effects, and What to Expect

April 17, 2026

Woman squeezing topical cream from a tube onto her fingertip

What Is Retin-A?Retin-A (tretinoin) belongs to a class of compounds called retinoids, which are derivatives of vitamin A. It was first approved by the FDA in 1971 for the [...]