Red dots can also come from skin irritation or allergic reactions. Conditions like eczema or contact dermatitis may cause itching, dryness, and redness, often triggered by products, fabrics, or certain foods.
Keratosis pilaris, often called “chicken skin,” creates small bumps on areas like arms or thighs. It’s caused by blocked hair follicles and is harmless, though moisturizing and gentle exfoliation can improve it.
Heat rash is another frequent cause, especially in hot weather. Blocked sweat glands lead to itchy or prickly red bumps, which usually disappear once the skin cools down.
