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    • Flea bites. usually located in clusters on the lower legs and feet. itchy, red bump surrounded by a red halo. symptoms begin immediately after being bitten.
    • Fifth disease. headache, fatigue, low fever, sore throat, runny nose, diarrhea, and nausea. children are more likely than adults to experience a rash.
    • Rosacea. chronic skin disease that goes through cycles of fading and relapse. relapses may be triggered by spicy foods, alcoholic beverages, sunlight, stress, and the intestinal bacteria Helicobacter pylori.
    • Impetigo. common in babies and children. often located in the area around the mouth, chin, and nose. irritating rash and fluid-filled blisters that pop easily and form a honey-colored crust.
  1. What Are the Causes of an Unexplained Rash? (with pictures)

    www.wisegeek.com/what-are-the-causes-of-an...

    Jul 24, 2020 · Some causes of an unexplained rash are an allergic reaction, abrasive clothing, and chronic fatigue syndrome. An allergic reaction is an especially common cause of unexplained rashes, but the patient often never finds out what he or she came into contact with that triggered the reaction.

  2. Chronic hives - Symptoms and causes - Mayo Clinic

    www.mayoclinic.org/.../symptoms-causes/syc-20352719
    • Overview
    • Symptoms
    • Causes
    • Complications

    Hives (urticaria) are red, itchy welts that result from a skin reaction. The welts vary in size and appear and fade repeatedly as the reaction runs its course.The condition is considered chronic hives if the welts appear for more than six weeks and recur frequently over months or years. Often, the cause of chronic hives is not clear.Chronic hives can be very uncomfortable and interfere with sleep and daily activities. For many people, antihistamines and anti-itch medications provide relief.

    Signs and symptoms of chronic hives include: 1. Batches of red or skin-colored welts (wheals), which can appear anywhere on the body 2. Welts that vary in size, change shape, and appear and fade repeatedly as the reaction runs its course 3. Itching, which may be severe 4. Painful swelling (angioedema) of the lips, eyelids and inside the throat 5. A tendency for signs and symptoms to flare with triggers such as heat, exercise and stress 6. A tendency for signs and symptoms to persist for more...

    The welts that come with hives arise when certain cells release histamine and other chemicals into your bloodstream.Doctors often can't identify the reason for chronic hives or why acute hives sometimes turn into a long-term problem. The skin reaction may be triggered by: 1. Pain medications 2. Insects or parasites 3. Infection 4. Scratching 5. Heat or cold 6. Stress 7. Sunlight 8. Exercise 9. Alcohol or food 10. Pressure on the skin, as from a tight waistbandIn some cases, chronic hives may...

    Chronic hives don't put you at any sudden risk of a serious allergic reaction (anaphylaxis). But if you do experience hives as part of a serious allergic reaction, seek emergency care. Signs and symptoms of anaphylaxis include dizziness, trouble breathing, and swelling of your lips, eyelids and tongue.

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  4. Skin rash: 68 pictures, causes, and treatments

    www.medicalnewstoday.com/articles/317999
    • Bites and stings. Many insects can cause a rash through a bite or sting. Although the reaction will vary depending on the person and the animal, symptoms often include
    • Flea bites. Fleas are tiny jumping insects that can live in fabrics within the home. They have a very fast breeding cycle and can take over a home very rapidly.
    • Fifth disease. Also known as erythema infectiosum and slapped cheek syndrome, fifth disease is caused by the parvovirus B19. One of the symptoms is a rash, which appears in three stages
    • Impetigo. Impetigo is a highly contagious skin infection that most commonly affects children. The first sign is normally a patch of red, itchy skin.
  5. Hives: 5 Causes You Wouldn't Expect | Health.com

    www.health.com/condition/allergy/hives-causes

    According to Dr. Jaliman, the body produces acetylcholine—a chemical that can inhibit cell breakdown—as a response to exercise. For some people, acetylcholine will disrupt skin cells, thus...

    • Julia Naftulin
    • 2 min
  6. Rash Chest: Type, Symptoms, Causes, and Treatments

    www.bestonlinemd.com/rash-on-chest

    Lyme disease is caused by tick bite, which can first appear as a circle with a bull’s-eye pattern, then progress to a rash. Allergies to food and medications are potentially serious sources of rash. Peanuts, shellfish, strawberries and avocados are just some of the foods that can trigger allergic reactions.

  7. Common rashes include eczema, poison ivy, hives, and athlete's foot. Infections that cause rashes may be fungal, bacterial, parasitic, or viral. Over-the-counter products may be helpful treatments for many skin rashes. Rashes lasting more than a few days that are unexplained should be evaluated by a doctor.

  8. Slide show: Common skin rashes - Mayo Clinic

    www.mayoclinic.org/skin-rash/sls-20077087

    Sep 28, 2019 · 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.

  9. 13 Serious Problems That Hives Could Indicate - HealthPrep.com

    healthprep.com/articles/skin-problems/10-serious...
    • Epidemiology
    • Signs and symptoms
    • Symptoms
    • Pathophysiology
    • Cause

    Studies have indicated a range of between ten to fifty percent of people with chronic hives have Hashimotos disease, a form of hypothyroidism. The immune system is attacked in both conditions, and the symptoms of hives are more extreme when Hashimotos is present. Those with Hashimotos disease are subjected to other ailments, including fatigue, depression, constipation, weight gain, hair loss, sensitivity to cold, dry skin, muscle weakness, and joint stiffness. This combination is seen more in women than men.

    Although rare, hives can show up in people with lupus. Usually, redness of the skin is limited to a butterfly-shaped rash on the cheeks and nose. This type of rash affects about fifty percent of people with lupus and can show up at random, just prior to a flare-up, or after direct exposure to the sun. The other skin issue similar to hives experienced alongside lupus is lesions, but the difference is they are not itchy like hives. Arthritis is typically associated with joint pain and inflammation. That is the case with Rheumatoid arthritis, which also sees symptoms including hives and other skin conditions. In only about one percent of people with RA, a rash called rheumatoid vasculitis develops. The rash flares up because of the inflammation of blood vessels associated with rheumatoid arthritis and can be accompanied by fever, loss of appetite, weight loss, and fatigue. Sjogrens syndrome is most known to affect the glands of the eyes and mouth and their ability to produce tears and saliva, respectively. When the skin is affected, symptoms can appear in different forms, one of which is dry, itchy skin. More seriously is when it develops into vasculitis. Skin lesions appear as spots and can take the form of lumps, blisters, or ulcers. In some rare cases, vasculitis can harm internal organs, nerves, and joints. People with Raynauds syndrome are affected by the cold, particularly with pain and numbing of the fingers and toes. A chronic skin condition called cold urticarial can present itself in those suffering from Raynauds and its symptoms includes hives. After exposure to cold temperatures, the skin will typically turn red, accompanied by itchy welts. There are different variations, with onset ranging from thirty minutes to several hours after exposure and can be accompanied by other symptoms.

    People with celiac disease are unable to digest gluten, which is a protein found in wheat, rye, and barley and present in many common foods. This autoimmune disease is characterized by a variety of symptoms, particularly gastrointestinal, but also including hives. People with celiac disease are required to avoid all products containing gluten for proper management and to avoid the uncomfortable, and sometimes debilitating, result of their consumption. An allergist can make a diagnosis with a blood test. Type 1 diabetes can present many different skin conditions, one of which is hives. Some of these conditions are unique to people with Type 1 diabetes, and others can be picked up by anyone, so it does not necessarily mean you have the disease if you suffer any of the following. Some of the warning signs of diabetes include developing bacterial infections, fungal infections, diabetic dermopathy, blisters, and eruptive xanthomatosis, among others.

    Vitiligo is a skin disease resulting in loss of color in patches and is caused when melanin-producing cells in the hair, skin, and eyes, die off. Doctors think one of the causes may be related to an attack by the immune system on the skins melanocytes. As a result, these blotches can occur either localized or all over the body. Hives occur when the immune system tries to attack what it thinks is an allergen so the itchy, red condition can show up in people with vitiligo.

    Pernicious anemia occurs mainly due to a vitamin B12 deficiency. The body lacks the ability to produce enough red blood cells for optimal health. Studies have shown a connection between autoimmunity in chronic hives and a lack of vitamin B12. In 2004, one such study indicated thirty-three percent of patients with chronic hives had a B12 deficiency and along with autoimmune urticaria (hives), were affected by autoimmune thyroiditis. It is not the main symptom of Pernicious anemia. Although a daily dose of thirty minutes of exercise is highly recommended, it may also be causing an individual to break out in hives. The body produces a chemical that can inhibit cell breakdown as cause rashes, known as acetylcholine, during exercise as a natural bodily response. Sweating is also known to cause a breakout of hives in those who are already prone to the condition. The sweat itself is not causing the hives, but the excess warmth of the skin can irritate the area concerned. Managing the inhabited environment, exercise, and what is consumed is paramount if hives are affecting an individual on a regular basis. There are also many environmental occurrences that can cause hives to break out such as excess heat, powerful winds, bug bites, and some plants are known to cause a breakout. If environmental concerns are worrisome, talk to a health professional about taking an antihistamine to reduce skin irritability. Food and drink are well-known causes of hives, and if an individual is suffering from them on a regular basis, there may be a severe problem with their diet. For many, food-related hives symptoms can sometimes take hours to develop, appearing long after the food that caused the breakout was consumed. A food diary is a standard way to determine and eliminate the culprit. If the food is an important one, talk to a dietary specialist about a supplemental replacement. Some who get hives from food are equipped with an EpiPen which narrows blood vessels and opens airways in the lungs. Many with food-related allergies that cause hives will already have an explicit knowledge of what causes the breakouts, but some individuals will need to discover their specific triggering foods.