Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
1,508,605,702 visitors served.
forum mailing list For webmasters
?
New: Language forums
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

Rashes

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson 0.06 sec.
Rashes 

Definition

The popular term for a group of spots or red, inflamed skin that is usually a symptom of an underlying condition or disorder. Often temporary, a rash is only rarely a sign of a serious problem.

Description

A rash may occur on only one area of the skin, or it could cover almost all of the body. Also, a rash may or may not be itchy. Depending on how it looks, a rash may be described as:
  • blistering (raised oval or round collections of fluid within or beneath the outer layer of skin)
  • macular (flat spots)
  • nodular (small, firm, knotty rounded mass)
  • papular (small solid slightly raised areas)
  • pustular (pus-containing skin blister).

Causes and symptoms

There are many theories as to the development of skin rashes, but experts are not completely clear what causes some of them. Generally a skin rash is an intermittent symptom, fading and reappearing. Rashes may accompany a range of disorders and conditions, such as:
  • Infectious illness. A rash is symptom of many different kinds of childhood infectious illnesses, including chickenpox and scarlet fever. It may be triggered by other infections, such as Rocky Mountain spotted fever or ringworm.
  • Allergic reactions. One of the most common symptoms of an allergic reaction is an itchy rash. Contact dermatitis is a rash that appears after the skin is exposed to an allergen, such as metal, rubber, some cosmetics or lotions, or some types of plants (e.g. poison ivy). Drug reactions are another common allergic cause of rash; in this case, a rash is only one of a variety of possible symptoms, including fever, seizures, nausea and vomiting, diarrhea, heartbeat irregularities, and breathing problems. This rash usually appears soon after the first dose of the course of medicine is taken.
  • Autoimmune disorders. Conditions in which the immune system turns on the body itself, such as systemic lupus erythematosus or purpura, often have a characteristic rash.
  • nutritional disorders. For example, scurvy, a disease caused by a lack of Vitamin C, has a rash as one of its symptoms.
  • cancer. A few types of cancer, such as chronic lymphocytic leukemia, can be the underlying cause of a rash.

Rashes in infancy

Rashes are extremely common in infancy, and are usually not serious at all and can be treated at home.
Diaper rash is caused by prolonged skin contact with bacteria and the baby's waste products in a damp diaper. This rash has red, spotty sores and there may be an ammonia smell. In most cases the rash will respond within three days to drying efforts. A diaper rash that does not improve in this time may be a yeast infection requiring prescription medication. A doctor should be consulted if the rash is solid, bright red, causes fever, or the skin develops blisters, boils, or pus.
Infants also can get a rash on cheeks and chin caused by contact with food and stomach contents. This rash will come and go, but usually responds to a good cleaning after meals. About a third of all infants develop "acne" usually after the third week of life in response to their mothers' hormones before birth. This rash will disappear between weeks and a few months. Heat rash is a mass of tiny pink bumps on the back of the neck and upper back caused by blocked sweat glands. The rash usually appears during hot, humid weather, although a baby with a fever can also develop the rash.
A baby should see a doctor immediately if the rash:
  • appears suddenly and looks purple or blood-colored
  • looks like a burn
  • appears while the infant seems to be sick

Diagnosis

A physician can make a diagnosis based on the medical history and the appearance of the rash, where it appears, and any other accompanying symptoms.

Treatment

Treatment of rashes focuses on resolving the underlying disorder and providing relief of the itching that often accompanies them. Soothing lotions or oral anti-histamines can provide some relief, and topical antibiotics may be administered if the patient, particularly a child, has caused a secondary infection by scratching. The rash triggered by allergies should disappear as soon as the allergen is removed; drug rashes will fade when the patient stops taking the drug causing the allergy. For the treatment of diaper rash, the infant's skin should be exposed to the air as much as possible; ointments are not needed unless the skin is dry and cracked. Experts also recommend switching to cloth diapers and cleaning affected skin with plain water.

Prognosis

Most rashes that have an acute cause, such as an infection or an allergic reaction, will disappear as soon as the infection or irritant is removed from the body's system. Rashes that are caused by chronic conditions, such as autoimmune disorders, may remain indefinitely or fade and return periodically.

Prevention

Some rashes can be prevented, depending on the triggering factor. A person known to be allergic to certain drugs or substances should avoid those things in order to prevent a rash. Diaper rash can be prevented by using cloth diapers and keeping the diaper area very clean, breast feeding, and changing diapers often.

Resources

Organizations

American Academy of Dermatology. 930 N. Meacham Road, P.O. Box 4014, Schaumburg, IL 60168-4014. (847) 330-0230. Fax: (847) 330-0050. http://www.aad.org.

Key terms

Purpura — A group of disorders characterized by purple or red brown areas of discoloration visible through the skin.
Scurvy — A nutritional disorder that causes skin bruising and hemorrhages.

Patient discussion about Rashes.

Q. Anyone out there my age? (76) with problems with terrible rashes, maybe a type of psoriasis? I have high blood pressure that my doctor cannot seem to control with meds. I have swollen ankles, achilles tendon problems, arthritis, high cholesterol, and a rash that won't quit. Deep red, itchy, painful, and unbearable. My dermatologist is not at all helpful. Can't tell me what it is or how to treat it. Meds he prescribed only made it worse. Anyone out there with this same type of problem?

A. First of all, start right now to drink 2 - 2.5 liters water a day. Read for that about Dr. med. F. "Batman" Batmanghelidj:
http://www.amazon.com/s/ref=nb_ss_b?url=search-alias%3Dstripbooks&field-keywords=batmanghelidj&x=0&y=0
In the same time you have to read this and your doctor too.
http://www.pulsarsystems.ch/Diabetes.pdf
If your doctor don't believe what is written in this handout - change your doctor, because he is not open-minded like you are! Learn how you can find a good doctor on my question-blog:
http://www.imedix.com/health_community/q103072_How_can_I_know_that_my_doctor_is_good
You are an open-minded man, else you would not be here and ask such an important question.
Then you must know that there are two kinds of cholesterol: our body produces the benefic one and the other one is the bad one. Butter decrease the bad cholesterol and margarine increase the bad cholesterol. I can't explain it here right now, but I will once do it. Then buy cristali

Q. What do I do with this horrible Diaper Rash?? I have no idea what is up with my daughters diaper rash, she is a year old and I do everything to keep this rash from coming, but it comes back! All week I have let her run without a diaper on trying to let it air out as much as possible, (thank god for carpet shampooers).Is there any secret that someone has to getting rid of this rash?

A. My own daughter was yeasty from whatever they do to newborns in the hospital and I battled it ever day until I started taking garlic gel tabs. Because I breasfed her she got all the benefits of it and her bottom cleared right up.
Probiotics can help, yogurt, kefir and the like. Super Salve from supersalve.com is amazing in its healing abilities. Avoid processed foods and especially sugars.

Q. Doyou know if the Plant Yarrow give a RASH?

A. i found 2 sources that claims it does-
"Some caution should be exercised in the use of this herb since large or frequent doses taken over a long period may be potentially harmful, causing allergic rashes and making the skin more sensitive to sunlight"
http://www.diet-and-health.net/Naturopathy/Yarrow.html
http://en.wikipedia.org/wiki/Yarrow

sounds reasonable, every material can be allergenic. so i would stop using it if i were you- if you are indeed allergic, it'll only get worst

Read more or ask a question about Rashes


How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
Email
Feedback
Add definition
? Mentioned in
 
Medical browser? ? Full browser
 
 
Medical Dictionary
?

Disclaimer | Privacy policy | Feedback | Copyright © 2009 Farlex, Inc.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Terms of Use.