A rash is defined as a widespread eruption of skin lesions. It is a very broad medical term. Rashes can vary widely in appearance. Their causes range from insect bites to HIV and reactions to medications. A rash can affect one part of the body or cover a large area. Rashes can also be dry, moist, bumpy, smooth, cracked, or blistered.

A rash is any area of irritated or swollen skin on your body. Rashes are often itchy and painful and can appear differently on different skin tones. While they are often described as red, on darker skin tones, they may be purple, gray, or white. Rashes have a variety of causes, from bites to chickenpox to serious conditions like drug allergies.

Skin lesions are abnormal changes in the skin compared to the surrounding tissue. Skin lesions may look like bumps or patches, or they may be smooth. They may be a different color or texture compared to nearby skin. Common causes include acne, cellulitis, and chickenpox.

A skin rash occurs when skin becomes red, inflamed and bumpy. Some skin rashes are dry and itchy. Some are painful. Many things can bring on a skin rash, including viruses, bacteria, allergens and skin conditions like eczema.

A rash is a common skin condition that can manifest for a variety of reasons. A rash is not a specific diagnosis. Instead, it refers to any sort of inflammation and/or discoloration that distorts the skin's normal appearance. Common skin rashes include COVID-19 rash, eczema, poison ivy, hives, and athlete's foot.