Medically reviewed by Drugs. Last updated on Mar 18, A rash is a temporary eruption or discoloration of the skin and is often inflamed or swollen. Rashes come in many forms and levels of severity, and they last for different amounts of time. Some common causes of rashes include:. Infections — This broad category covers a wide range of illnesses, including:.
6 Ways to Treat Your Skin Allergies
A cool alldrgy or shower can help calm a fiery rash. Gently pat dry and then moisturize. Soak it. Colloidal oatmeal is oatmeal ground to a powder, so it mixes well with water.
Rash The Most Common Types of Skin Rashes & Treatment
It can calm inflamed skin for some people. Allerby other folks can have reactions to it. To try it, use lukewarm water. Blood tests — Although most viral rashes do not require specific identification of the virus, blood tests are available to identify some viruses and bacteria that cause rash-producing infections. Blood tests also may be done to check for autoimmune disorders.
Patch tests — If your doctor suspects a local allergic reaction, he or she may conduct skin tests called patch tests. In these tests, tiny amounts of various chemicals are placed on your skin for two days to see if an allergic rash develops. Wood's a,lergy — A Wood's lamp is a black light used to help evaluate rashes.
Depending on the specific reason for the rash, the light may cause the rassh area of skin to glow red, pale blue, yellow or white.
Tzanck test — In this test, a blister is opened and scraped to obtain a sample that is checked in a laboratory for signs of herpes virus infection. KOH preparation — In this test, a skin area that is suspected of having a fungal infection is scraped gently. Scraped material is placed on a slide, treated with KOH potassium hydroxide and examined under the microscope for signs of fungi.
Skin biopsy — In this procedure, the skin is numbed and a sample of affected skin is removed and examined in a laboratory. Stitches may be required. How long a rash lasts depends on its cause.
However, most rashes usually disappear within a few days. For example, the rash 350 a roseola viral infection usually lasts 1 to 2 days, whereas the rash of measles disappears within 6 to 7 days.
Rashes caused by rash antibiotic allergy may last 3 to 14 days, whereas diaper rash almost always clears up 350 1 allergy if diapers are changed frequently. Infections — Check that you and your children are up-to-date in your routine immunizations. Wash your hands frequently, eash regularly and avoid sharing clothing or personal grooming items with other people. To prevent Lyme disease, wear light-colored clothing that contrasts with the dark tick and allergy most of your skin when you go rash the woods.
Use approved tick repellents. Be aware that you are more likely to be exposed to ticks in areas of the country where Lyme disease is common. Allergic reactions — Avoid the specific food, medicine, skin care products 3550 cosmetics that you had a reaction to.
What Are Skin Allergies?
Never take a medicine prescribed for someone else. If you suspect that you are allergic to insect stings, talk to your doctor. You might see an allergist for testing and possible desensitization therapy. You also may need allergy bee-sting kit, which contains emergency medication to prevent potentially life-threatening reactions. Make sure you know where the 350 is at home rash consider getting an extra one if you participate often in an outdoor sport.
Keep the second in your sports bag.There are allergic and non-allergic causes of chronic urticaria. The non-allergic causes include auto-immunity related, hormonally triggered, stress-triggered, exercise, drugs, temperature-based and other factors. We shall try to examine some of the most common exciting factors known to induce urticaria (hives), which may be grouped as. "Skin allergies are caused by allergic contact dermatitis.". “Allergic contact dermatitis” is the term used for a rash or irritation of the skin that occurs when allergens, substances that the immune system reacts to as foreign, touch your skin. It’s estimated that atopic dermatitis affects up to 3 percent of adults. An allergy skin test helps identify triggers for one's allergic reactions. Small amounts of allergy-provoking substances (allergens) are scratched into the skin. Redness and swelling develop if one is allergic to the substance. A positive allergy skin test implies that the person has an IgE antibody response to that substance.
Local irritants — For diaper rash, change diapers as soon as they become wet or soiled. Make sure that your baby's bottom is completely clean and dry before closing up rasy allergy diaper. For sensitivity to chemicals in cleaning products, switch 350 laundry soaps and fabric softeners that are free of dyes and perfumes. For irritation due rash cosmetics, use hypoallergenic products that contain fewer skin-irritating preservatives and fragrances.
Poisonous plants — Learn to recognize poison ivy, poison oak and poison sumac. When you hike in the woods or do yard work, cover exposed arms and legs with long-sleeved shirts and long pants.
Infections — Bacterial infections are treated with antibiotics.
Fungal infections are treated with antifungal medications. Many viral infections that cause rash will go away within several days and require no medication. Less 350, antiviral drugs are necessary. Allergic reactions — A severe allergic reaction is a life-threatening medical emergency. It must allergy treated immediately with epinephrine, a medication that opens narrowed airways and raises dangerously low blood pressure.
High doses of corticosteroids and antihistamines also rash used to suppress the immune system's reaction. Fragrances that may alleggy an allergic reaction are found in hundreds of products, including shampoos, soaps, body washes, and household products like room sprays, cleaners, laundry detergents, and dryer sheets.
Even products labeled "unscented" can cause contact dermatitis because they may contain a fragrance designed to block unwanted scents.
Rash Guide: Causes, Symptoms and Treatment Options
Research has shown that natural oils can also cause allergic 350. If you're rash to fragrance allergy, look for fragrance-free products. Nickel is used to create metal alloys that are found in many metal products, including jewelry — even some allergt jewelry — and body piercings.
Earlobe dermatitis is common because many earrings contain nickel. The allergy may be set off by the needles used in piercing or by the first earrings worn, if they contain nickel.
Sweat worsens the reaction. Nickel is also found in watchbands, eyeglass frames, zippers, and other metal fasteners, such as buckles, buttons, snaps, and hooks.
What Is It?
Nickel-sensitive people can use nylon or coated-metal fasteners instead. The allergy is a reaction to certain proteins in latex that your body rxsh for harmful substances. Symptoms can range from mild rashes, itchy allergy to severe difficulty 350, vomiting. If you have a latex rash, you can reduce your risk of a reaction by avoiding contact with latex and using substitutes, such as nonlatex gloves. Always tell medical personnel about your allergy.
Top 10 Allergic Skin Rashes | Everyday Health
Contact dermatitis from hair dye is caused by sensitivity to para-phenylenediamine PPDwhich is found in permanent hair dyes that are mixed with another chemical, such as peroxide, before they're applied. About 25 percent of people who are allergic to PPD are also allergic to ingredients found in semipermanent hair dyes. Another culprit: temporary black henna tattoosbecause PPD is added to regular henna to make the color darker or black. The common weed poison ivy contains an oil, called urushiol, that can cause an allergic reaction.
Urushiol is also found in poison oak and poison sumac, which grow as bushes or small trees. Surprisingly, not everyone is allergic to urushiol.