- Eczema (Atopic Dermatitis): Presents as dry, scaly, intensely itchy patches that can become red and inflamed. It often runs in families and is linked to allergies and asthma.
- Psoriasis: Characterized by thick, red patches of skin covered with silvery-white scales. It’s an autoimmune condition that can cycle through flares and remissions.
- Rosacea: Causes persistent redness, visible blood vessels, and sometimes small, red, pus-filled bumps on the face, often triggered by sun, stress, or spicy foods.
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Pityriasis Rosea: Starts with a single, large, scaly “herald patch,” followed by a widespread rash of smaller, red, oval spots. It often resolves on its own in weeks.
- Hives (Urticaria): Raised, red, itchy welts that appear suddenly, often due to an allergic reaction to food, medication, or other triggers. They can change shape and move around.
Red Flags: When to See a Doctor Immediately
While Dr. Tatyana is right about the importance of distinction, here are the specific signs that should prompt a prompt visit to a doctor or dermatologist. Use the “ABCDEF” guide as a starting point: