Rash 101 in adults: When to seek treatment To the untrained eye, all rashes may look alike and seem easily treatable with over-the-counter oral antihistamines or hydrocortisone cream. However, it is not always so simple, say dermatologists. Rashes can appear as blotches, welts or blisters; they can be red, itchy, scaly, or dry; and they can. There are many types of skin rashes. A rash is an outbreak of many red bumps or patches on the body. Many conditions can cause an itchy rash. In adults, several types of skin inflammation, various allergic reactions (contact dermatitis), and sometimes infection with a mite or virus can be the cause of a new rash on the skin.
Oct 21, 2016 · Skin rashes can occur from a variety of factors, including infections, heat, allergens, immune system disorders and medications. One of the most common skin disorders that causes a rash is atopic dermatitis (ay-TOP-ik dur-muh-TI-tis), also known as eczema. Atopic dermatitis is an ongoing (chronic) condition that makes skin red and itchy. Common skin rashes can appear due to multiple reasons like allergies, side effect of medications, underlying medical conditions or due to infections. A rash affects people of all ages, sexes and races. People with a poor immune system function are often prone to skin rashes. Here are the 10 most common skin rashes in adults.