What Causes Itchy Skin

What Causes Itchy Skin

Eczema. Itchy skin spots may be from eczema or dermatitis, the catch-all name for inflammation of the skin. There are a few types of eczemas or inflammatory skin conditions that cause itchy skin spots:Atopic dermatitis. Because it starts before the age of 5 in 90 percent of people, you probably already know if your itchy skin spots are from atopic (allergic) dermatitis. Though it’s a lifelong condition, atopic dermatitis often eases as you get older. Keep in mind that itchy skin spots can occur almost anywhere from feet, ankles, and knees to elbows, hands, and wrists, to the upper chest, neck, face, and even the eyelids.Irritant contact dermatitis. This is a reaction to a chemical, like a detergent in dish liquid or solvent. A skin reaction can happen immediately or progressively over time with lots of exposure to the particular irritant.Nickel — found in jewelry, metal snaps and hooks on clothing, earrings, and even the needles used to pierce ears — can cause earlobe dermatitis.Rubber, especially latex, can cause an allergic reaction can include itching, burning, hives, and more serious complications, depending on the severity of your allergy.Dyes (like permanent hair dyes with paraphenylene-diamine) can cause itchy rashes, and chromates (used to dye shoe leather) can cause shoe dermatitis on feet. Chromates are also in some matches, and touching the unlit match can cause a reaction on your fingers.Neomycin, found in topical antibiotic ointments, lotions, creams, eye drops, and ear drops, can cause redness or irritation.Fragrances and preservatives in skin care and other health and beauty products can also be irritating.Fungal infections. There are a variety of skin infections due to fungi that cause itching, along with other, more severe symptoms like redness and scaling. Athlete’s foot, jock itch, and ringworm are examples.
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What Causes Itchy Skin

Itchy skin has many causes, including dryness and allergies, but only rarely does it signal that a person has cancer. This symptom may occur as a result of complications of the disease, and itchy, flaky skin and rashes are common side effects of some cancer drugs. Most skin cancers, such as malignant melanoma, don’t normally cause itching. One form of cancer in which itching is a prominent sign is polycythemia vera, one of several blood cancers known as myeloproliferative disorders. People with this disease may experience itchiness particularly after a warm bath or hot shower, but this is only one of many symptoms associated with polycythemia vera. Others are trouble breathing when lying down, dizziness, headache, fatigue, and others. Scaly skin and red rashes may be an early sign of mycosis fungoides or Sezary Syndrome, which are forms of cutaneous T-cell lymphoma. Mycosis fungoides goes through a series of phases, beginning with red rashes that may last for months or years, followed by the development of bumps or hardened lesions on the skin, and eventually tumors that form on the skin and may be infected. Pancreatic cancer is another disease where patients may experience itching, but itching in itself is not a sign of pancreatic cancer. Pancreatic cancer patients may experience itching if their tumor blocks the bile duct and causes jaundice, says Robert Mayer, MD, of Dana-Farber’s Gastrointestinal Cancer Treatment Center. When this occurs, chemicals in the bile can leak into the skin and cause itching. Some cancer treatments may cause itching or rashes over the entire body or in isolated areas. This may be result from a hypersensitivity reaction during chemotherapy infusion. In some cases, itching may be a chronic side effect of treatments, including biologic agents, radiation therapy, and a variety of targeted drugs. var OB_platformType=3; var OB_PlugInVer=’8.0.0.0_Regular’;
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What Causes Itchy Skin

Itchy skin spots can be frustrating as well as annoying, especially when the urge to scratch is hard to resist. Your itchy skin spots can be a simple case of dry skin or part of a skin condition with noticeable signs, like the hives or rash from an allergic reaction. However, in some cases the reason for the itch could be more serious. Diseases as varied as kidney failure, hepatitis, and HIV can cause itching. A mole that starts to itch can be a warning sign of skin cancer.
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What Causes Itchy Skin

You may have itchy skin over certain small areas, such as on an arm or leg, or over your whole body. Itchy skin can occur without any other noticeable changes on the skin. Or it may be associated with:
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What Causes Itchy Skin

For many types of dermatitis, itchy skin spots will also need the calming action of a topical corticosteroid, or an immunomodulator medication which decreases the immune response causing the itching. Sometimes an oral antihistamine is needed to stop the histamine-itch reaction. Itchy skin spots that turn out to be a blistering poison ivy, for example, may be soothed with old-fashioned home remedies like an oatmeal bath and calamine lotion. Some people with atopic dermatitis may also have another allergic condition, like asthma or hay fever, as well as food allergies; managing these with the help of an allergist as well as your dermatologist may improve your symptoms. And itching due to a fungal infection must be treated with antifungal medications.
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What Causes Itchy Skin

Substances that irritate the skin and make it itchy are common. Plants such as poison ivy and oak and insects such as mosquitoes produce substances that cause itching. Some people get itchy when in contact with wool, perfumes, certain soaps or dyes, and chemicals. Allergies, including food allergies, can irritate the skin as well.
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What Causes Itchy Skin

One of the most common symptoms of all skin problems is itching. People may suffer from itchy skin all over their body or only specific areas. People may also have problems with dry, cracked skin, or a leathery or scaly skin texture.
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What Causes Itchy Skin

Dry skin. Though you might think of rough, flaky patches as the biggest symptom of dry skin, dry skin can start by feeling itchy. Don’t expect to see a rash, but you can sense tightness as skin loses water.
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Whether you have itchy dry skin or another skin condition, tender care is often step one:Avoid soaps and harsh cleansers as well as hot water that can strip skin of protective oils.Apply a rich moisturizer while skin is still damp to create a protective barrier.Choose comfortable, loose clothing in light fabrics and try to keep your indoor temperature on the cool side.
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Dry skin, allergy, or irritation — there are many causes for those itchy skin spots. Find out what’s behind that itch and explore your treatment options.
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Itchy skin, also known as pruritus, is an irritating and uncontrollable sensation that makes you want to scratch to relieve the feeling. The possible causes for itchiness range from internal illnesses, such as kidney or liver disease, to skin rashes, allergies, and dermatitis.
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Spotlight on: Dermatology Tips For Healthy And Young Looking Skin Learn how to keep your skin looking young and healthy with these top tips sourced from skin experts and recent journal studies. What Are Bed Bugs? Our guide to bed bugs – wingless insects that feed on the blood of warm blooded animals. We look at how they feed and re-produce and how you can treat and get rid of them from your house. What Is Dandruff? Dandruff, also known as scurf or Pityriasis simplex capillitii, affects the scalp and causes flakes of skin to appear – it is a common condition. Our skin cells are forever renewing themselves.
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The key to relief is to stay away from the objects or ingredients that cause the itch. The problem is that being vigilant can be time-consuming, and it’s easy to become lax. However, reading the ingredient lists on beauty products as well as the fiber content on clothes, for instance, will steer you away from the moisturizer with a bothersome fragrance or the sweater that has 5 percent wool, if those are your triggers. After allergy skin testing, your dermatologist should be able to give you a list of your trigger irritants or allergens and possible substitutes. Once you know what troubles your skin, you’ll know how to avoid getting those itchy skin spots.
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Eczema or atopic dermatitis: It shows up on your skin as dry, scaly patches or a bumpy rash. It isn’t clear what causes it, but it’s extremely itchy. Kids are more likely to get it if their family has a history of asthma and allergies. Certain food allergies can make it worse. So does scratching.
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Psoriasis: It makes your body overproduce skin cells, which pile up in itchy, inflamed patches on the skin’s surface. Doctors don’t know the exact cause, but the immune system may be involved.
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The result of the skin allergy is a red, itchy rash that can include small blisters or bumps. The rash arises whenever the skin comes in contact with the allergen, a substance that the immune system attacks. Often, there is a time delay between exposure to the allergen and when the rash occurs.
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The word “rash” means an outbreak of red bumps on the body. The way people use this term, “a rash” can refer to many different skin conditions. The most common of these are scaly patches of skin and red, itchy bumps or patches all over the place.