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What types of rashes are contagious

A 50-year-old member asked:
Dr. Morris Westfried
45 years experience in Dermatology
Viral,bacteria,fungi: Many skin rashes are caused by infections such as herpes, zoster, staph, and tinea. These rashes are all contagious and need to be treated.
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A 23-year-old female asked:
Dr. Robert Kwok
32 years experience in Pediatrics
Doctor can examine: Rashes are hard to describe in words. A doctor's exam, in-person or on video like on HealthTap, can help decide what rash bumps on the skin might be. ... Read More
A 37-year-old female asked:
Dr. Michael Sparacino
36 years experience in Family Medicine
See your doctor: Its unfair to you for us to try to guess what kind of rash you have over the internet. Your doctor will be able to see it and feel it and give you an ... Read More
A 34-year-old female asked:
Dr. Melissa Haglund
22 years experience in Internal Medicine
Most commonly fungal: Infections affect the feet. If there is redness, scaling and itching it is often a fungal infection (tinea pedis). But it could also be scabies if it ... Read More
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A 54-year-old member asked:
Dr. Richard Bensinger
51 years experience in Ophthalmology
Probably none: While the contents of a boil are usually infected, there is little transmission. You would have to insert the boils pus into an open wound on your bo ... Read More
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A 38-year-old member asked:
Dr. Stephen Friedman
40 years experience in Dermatology
Many Types: The are many forms of dermatitis (eczema), including atopic, seborrheic, stasis, contact, asteatotic, and nummular forms. Treatment depends upon the ... Read More
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A 27-year-old female asked:
Dr. Jovita Anyanwu
29 years experience in Internal Medicine
Any abnormal lesion: Any abnormal lesion on the genitals. It could be warts, syphilitic, herpetic , bacterial or tumors on the genitals.
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A 30-year-old female asked:
Dr. John Chiu
Dr. John Chiu answered
56 years experience in Allergy and Immunology
Rash: Eczema is often used as a generic term for any type of flat skin rash. The best defined one is atopic dermatitis which is caused by the skin's inabil ... Read More
A 65-year-old female asked:
Dr. Robert Killian
27 years experience in General Practice
Textbook Questions: This would take an entire text book to answer. It is way out of the bounds of this simple app. Perhaps you can narrow this down to a specific question ... Read More
A 51-year-old female asked:
Dr. Arthur Balin
46 years experience in Dermatology
Rashes: There are many rashes that don't usually itch. However there are always exceptions. For example usually chronic plaque psoriasis, discoid lupus ery ... Read More
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A 30-year-old member asked:
Dr. Jay Park
Dr. Jay Park answered
49 years experience in Pediatrics
Whole variety: Eczema is primarily a morphologic term used to describe a red, scaling, inflammatory eruption with itching, edema, papules, vesicles, and crusts. Inc ... Read More
A 23-year-old female asked:
Dr. Gurmukh Singh
48 years experience in Pathology
Depends: Not warty looking skin lesions are contagious, e.g, seborrheic keratosis looks like a wart but is not contagious. Other types of warts are caused by H ... Read More
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A 22-year-old female asked:
Dr. Stephen Southard
14 years experience in Internal Medicine
Lots: There are 8 that affect humans. 1 and 2 are the ones people most commonly think about that cause oral and genital lesions. Chickenpox is another type. ... Read More
A 50-year-old member asked:
Dr. Martin Raff
55 years experience in Infectious Disease
Scarlet Fever: Due to toxins produced by streptococcus pyogenes, the rash is red, with slight elevations of parts of the skin producing a sandpaper like feel, and th ... Read More
A 52-year-old member asked:
Dr. John Munshower
29 years experience in Family Medicine
Many: There are many types of skin cancer, too numerous to mention here, ..But some common ones are squamus cell and basal cell. Malignant melanoma is more ... Read More
A 30-year-old member asked:
Dr. David Bracho
8 years experience in General Practice
Skin, lungs and GI: Anthrax is an infection caused by bacillus anthracis that is usually spread by infected animals or animal products and can manifest itself in three wa ... Read More
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A 47-year-old member asked:
Dr. Heidi Fowler
24 years experience in Psychiatry
Contagious: TB Disease from the lung/ larynx can be transmitted. Latent TB Infection is not contagious in that state.
A female asked:
Dr. Gurmukh Singh
48 years experience in Pathology
See below: Unfortunately psoriasis is a chronic disorder with no known cure, Medications can control it. See this site for more information on this issue. http: ... Read More
A 31-year-old member asked:
Dr. Margaret Mann
18 years experience in Dermatology
Yes: Dermatologists classify acne into three types: comedonal (black and whiteheads), inflammatory(pimples), and cystic (deep acne cysts). Comedonal acne ... Read More
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A 30-year-old member asked:
Dr. Henry Bloom
47 years experience in Family Medicine
Sore or crust: An open sore, especially in a child, or one with a heaped up yellow crust, is nusually impetigo.
A 47-year-old member asked:
Dr. Vicki Levine
40 years experience in Dermatology
About 6: The two most common types of herpes virus r type 1 and type 2. Type 1 causes cold sores and type 2 causes genital herpes. With the sexual mores of tod ... Read More
A 49-year-old member asked:
Dr. Oscar Novick
57 years experience in Pediatrics
Baby rashes: Rashes are mostly caused by a fungus or bacterial.
A 27-year-old male asked:
Dr. M. Christine Lee
27 years experience in Dermatology
Many types: Infection with viruses, bacteria, fungus, yeast, mycoplasma, parasites can all cause hives. Viruses include epstein-barr (mono), hepatitis, hiv, herpe ... Read More

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