Our Rash Main Article provides a comprehensive look at the who, what, when and how of Rash
Definition of Rash
Rash: Breaking out (eruption) of the skin. A rash can be caused by an underlying medical condition, hormonal cycles, allergies, or contact with irritating substances. Treatment depends on the underlying cause of the rash. Medically, a rash is referred to as an exanthem. Last Editorial Review: 3/19/2012 Back to MedTerms online medical dictionary A-Z List 
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Ringworm
- The term "ringworm" or "ringworms" refers to fungal infections that are on the surface of the skin. A physical examination of the affected skin, evaluation
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Scabies
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Shingles
- Shingles (herpes zoster) is a skin rash caused by the same virus that causes chickenpox. Under certain circumstances, such as emotional stress, immune
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Staph Infection (Staphylococcus Aureus)
- Staphylococcus or Staph is a group of bacteria that can cause a multitude of diseases. Staph infections can cause illness directly by infection or indirectly
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Skin Tag
- A skin tag is a small benign growth of skin that projects from the surrounding skin. Skin tags can vary in appearance (smooth, irregular, flesh colored,
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MRSA
- MRSA (methicillin resistant Staphylococcus aureus) bacteria causes skin infections with the following signs and symptoms: cellulitis, abscesses, carbuncles,
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Eczema
- Eczema, also known as dermatitis, is a general term for many types of skin inflammation. The most common form of eczema is atopic dermatitis. The other
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Lyme Disease
- Lyme disease is a bacterial illness, which is spread by ticks when they bite the skin. Initially the disease affects the skin causing a reddish rash associated
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Ticks
- Ticks are known transmitters of disease to humans and animals. Tick-borne diseases include Lyme disease, Rocky Mountain spotted fever, Q fever, tularemia,
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Infectious Mononucleosis
- Infectious mononucleosis is a virus infection in which there is an increase of white blood cells that are mononuclear (with a single nucleus) "Mono"
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Rosacea
- Rosacea is a skin disease that causes redness of the forehead, chin, and lower half of the nose. In addition to inflammation of the facial skin, symptoms
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Athlete's Foot
- Athlete's foot (tinea pedis) is a skin infection caused by the ringworm fungus. Symptoms include itching, burning, cracking, peeling, and bleeding feet.
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Itching
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Impetigo
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Bed Bugs
- Bed bugs (from the insect family Cimicidae) are small, reddish-brown tick-like insects that feed by sucking the blood of mammals. They are often found
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Hives
- Hives, also called urticaria, is a raised, itchy area of skin that is usually a sign of an allergic reaction. The allergy may be to food or medications,
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Allergy
- An allergy refers to a misguided reaction by our immune system in response to bodily contact with certain foreign substances. When these allergens come
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Lupus
- Systemic lupus erythematosus is a condition characterized by chronic inflammation of body tissues caused by autoimmune disease. Lupus can cause disease
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Poison Ivy
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Dengue Fever
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Keratosis Pilaris
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Jock Itch
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Coxsackie Virus
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Hand Foot and Mouth Disease
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Measles
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Roseola
- Roseola is a viral illness that most commonly affects young children. Symptoms and signs include a sudden high fever that lasts for three to five days,
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Mold
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Tinea Versicolor
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Spider Bites (Including Black Widow and Brown Recluse)
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