6 Common Rashes: And What They Look Like | Healthline
Contact dermatitis is a rash that develops after the skin comes into contact with an irritant or allergen. Common irritants include soaps, detergents, jewelry, and certain fabrics. Common allergens include poison ivy, poison oak, and nickel. Contact dermatitis can cause a variety of symptoms, including redness, itching, swelling, and blisters.
Psoriasis is an autoimmune disease that causes the skin cells to grow too quickly, resulting in a buildup of scales and dry skin. Psoriasis can affect any part of the body, but it is most common on the elbows, knees, scalp, and lower back.
Hives are raised, red, itchy bumps that appear on the skin. They can be caused by a variety of things, including allergies to food, medications, and insect bites. Hives usually go away on their own within a few hours or days, but they can be treated with over-the-counter antihistamines if needed.
Heat rash is a rash that occurs when sweat glands become clogged and sweat cannot escape. It is most common in babies and young children, but it can affect people of all ages. Heat rash often appears on the neck, chest, back, and buttocks.
Ringworm is a fungal infection that can affect the skin, hair, and nails. It is a contagious infection that can be spread through contact with infected people, animals, or objects. Ringworm can cause a variety of symptoms, including red, itchy bumps and blisters.
If you experience a rash, it is important to see a dermatologist to get a diagnosis and treatment plan. Some rashes may be harmless and go away on their own, while others may require medication.