Dermatitis herpetiformis (DH) is a rare, chronic, autoimmune skin condition characterized by the presence of groups of severely itchy blisters and raised red skin lesions. These are most commonly located on the elbows, knees, buttocks, lower back and scalp.
Nummular eczema is more difficult to treat than other types of eczema, but it's also quite rare. If you have nummular eczema, your skin is marked by round, coin-shaped, itchy lesions.
Three common types of this condition are atopic dermatitis (eczema), seborrheic dermatitis and contact dermatitis.
Discoid eczema, also known as nummular or discoid dermatitis, is a long-term (chronic) skin condition that causes skin to become itchy, swollen and cracked in circular or oval patches. Without treatment, discoid eczema can last for weeks, months or even years.
Atopic dermatitis, often referred to as eczema, is a chronic (long-lasting) disease that causes inflammation, redness, and irritation of the skin. It is a common condition that usually begins in childhood; however, anyone can get the disease at any age.
Dermatitis is a general term to describe several skin conditions. These include atopic dermatitis, contact dermatitis, and seborrheic dermatitis. Irritants or allergens often cause contact dermatitis. Common causes of such dermatitis include cosmetics, soaps, metal jewelry, and dyes.
Thick, leathery skin. Discolored, wrinkled genital skin. Raised, rough patches that are inflamed or darker than the rest of the skin.
Eczema herpeticum is a skin infection of herpes simplex virus (HSV) that commonly develops in patients with atopic dermatitis. It is more common in children, where it presents with painful blisters and “punched out” erosions. Eczema herpeticum is caused by the herpes simplex virus, especially type 1 (HSV-1).
Clinical occurrence of atopic dermatitis is often associated with psychological stress. In response to stress, upregulation of neuropeptide mediators in the brain, endocrine organs, and peripheral nervous system directly affect immune and resident cells in the skin.
Dr. Mark Levenberg, FAAD, a Board-certified dermatologist, and Medical Director, US Medical Affairs, at Pfizer advises that "stress has been shown to have a scientific link, through a variety of mechanisms, to impact our immune system and skin barrier, which may contribute as an exacerbating factor to eczema."
Common signs and symptoms of stasis dermatitis include: Thickened, discolored (reddish) skin on the ankles or shins. Itching. Open sores, oozing and crusting.
Psoriasis: Well-defined, layered, scaly patches overlying redness. Scaling or “plaques” can be silvery, white, or red. Skin tends to be thicker, raised, and more inflamed than with eczema because psoriasis symptoms cause an excess buildup of skin cells that the body can't shed quickly enough.
Atopic dermatitis is a common disorder that affects 10 to 20 percent of children and 5 to 10 percent of adults.
What exactly is severe AD? AD is the most common type of eczema. When this eczema becomes severe, a person has patches of skin that are red, swollen, and unbearably itchy. The patches of AD can weep fluids.
Seborrheic dermatitis signs and symptoms may include: Flaking skin (dandruff) on your scalp, hair, eyebrows, beard or mustache. Patches of greasy skin covered with flaky white or yellow scales or crust on the scalp, face, sides of the nose, eyebrows, ears, eyelids, chest, armpits, groin area or under the breasts.
This rash can be dry, have greasy scales, or both. If you have a darker skin tone, the rash tends to look pink (A), slightly purple, or lighter than your natural skin tone. Some people with darker skin tones develop white spots on their scalp. In lighter skin tones, the rash is usually red and raised (B).
What is seborrheic dermatitis? This is a common skin condition that causes a scaly rash on oily areas of the body like the scalp and face. The rash can appear on the skin in many different ways, and sometimes looks like another skin condition. For an accurate diagnosis, see a board-certified dermatologist.
Allergic contact dermatitis (ACD) is a type 4 or delayed-type hypersensitivity response (DTH) by an individual's immune system to a small molecule (less than 500 daltons), or hapten, that contacts a sensitized individual's skin.
It is possible to have more than one type of eczema on your body at the same time. The most common form of eczema is atopic eczema. Other common types of eczema include irritant contact dermatitis and seborrheic dermatitis.
Systemic lupus erythematosus (SLE) is an autoimmune disease. In this disease, the immune system of the body mistakenly attacks healthy tissue. It can affect the skin, joints, kidneys, brain, and other organs. The round or disk shaped (discoid) rash of lupus produces red, raised patches with scales.
Unlike atopic dermatitis, which can be widespread, neurodermitis is usually confined to one or two patches of skin. It rarely goes away without treatment, and continued scratching can irritate nerve endings in skin, intensifying both itching and scratching.
Netherton disease.
This is a rare disorder that you're born with. Like eczema, it can cause skin to look red and scaly, as well as leak fluid. The disease could affect your immune system and make you more likely to get eczema. It may also affect your hair, making it thin and fragile.