Oct 20, 2025 · This skin condition causes a rash is thick and scaly and usually appears on the knees, back, elbows, genitals, and scalp. It is permanent and can be passed down from your parents.

Mar 27, 2024 · The cause of a rash may be difficult to identify on your own because rashes may present as splotches, bumps, or blisters. They can be itchy, scaly, and red, and some may look different on ...

Skin rashes, or red, bumpy, often itchy skin, has many causes including viruses, bacteria, allergens and skin conditions like eczema and psoriasis.

Jul 10, 2023 · A rash is an area of skin that is irritated, inflamed or swollen. Rashes can occur due to various causes. Discover 36 common skin rashes.

3 days ago · Learn more about when to worry about a rash in adults and whether immediate medical care is necessary. Reviewed by a board-certified dermatologist.

A rash may be localized in one part of the body, or affect all the skin. Rashes may cause the skin to change color, itch, become warm, bumpy, chapped, dry, cracked or blistered, swell, and may be painful.

Aug 28, 2025 · Allergens usually cause a shiny, blistered, itchy rash, while irritants tend to cause a dry, scaly, less itchy rash. It can appear hours to days after exposure.

Dec 7, 2025 · Different skin rash types include eczema, psoriasis, and shingles. Treatment depends on the cause and may include medications or lifestyle changes.

May 15, 2025 · There are many types of rashes. Causes of a rash include contact dermatitis, viruses, and autoimmune conditions. This article provides images to help identify a rash.

Oct 14, 2024 · Often, the cause of a rash can be determined from how it looks and its location and symptoms. Skin testing, such as a scraping, culture, or biopsy, may also be used to help with diagnosis.