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Common skin diseases and conditions
By Jon Johnson. Last reviewed
People should work closely with a dermatologist to diagnose and treat any skin condition to ensure that their lifestyle is not affected. Below are the most common skin diseases separated by type.
Permanent skin diseases
In adults, seborrheic dermatitis may appear anywhere and is prone to flare up and disappear for the rest of a person’s life. The affected skin may be reddish, swollen, and appear greasy. A white-to-yellow crust may appear on the surface of the skin as well. Many treatments help to bring relief from symptoms.
Most people have moles and may develop new ones from time to time.
Moles have no symptoms, but should be regularly checked if they grow larger, appear abnormal, or change in color.
If moles have asymmetrical shapes, ragged edges, uneven colors, or change in size, they should be checked.
Patients with melanoma may have surgery, or undergo chemotherapy or radiation treatments.
- Erythematotelangiectatic rosacea causes the typical redness, visible blood vessels, and flushing.
- Ocular rosacea can cause red and irritated eyes, swollen eyelids, and symptoms that look like a stye.
- Papulopustular rosacea causes redness, swelling, and is accompanied by breakouts that look like acne.
- Phymatous rosacea causes the skin to thicken and have a bumpy texture.
There is no known cure for rosacea, but symptoms can and should be treated to keep the condition in check.
While lupus can affect any part of the body, symptoms on the skin include red patches or ring shapes on the skin, sunburn-like rashes on the nose and cheeks, or circular rashes that don’t itch or hurt. These may be accompanied by other symptoms, such as headaches, fever, fatigue, and swollen, stiff, or painful joints.
Treatment includes various strength medications designed to help minimize the damage caused by lupus.
- Plaque psoriasis causes thick red patches of skin.
- Pustular psoriasis causes pustules surrounded by red skin.
- Erythrodermic psoriasis causes patches of skin that look like severe burns covering large portions of the body.
- Inverse psoriasis causes a shiny red rash in the folds of the skin.
- Guttate psoriasis causes small red spots on the scalp, face, torso, and limbs.
The rashes are very itchy and may become bumpy, change color, or thicken. In adults, the rashes may cover more of the body, causing very dry skin that is permanently itchy.
There are a few different types of eczema, each causing their own symptoms. There is no known cure for eczema. It either clears up on its own or the symptoms are treated with medications and creams.
For some people, the symptoms are in one area, while others find that it spreads slowly over many years. There is no known cure for vitiligo. There are some medical and surgical treatment options, though they are not right for everyone.