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Doctor insights on: Is Dermatitis Contagious

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Dr. John Chiu
2,663 Doctors shared insights

Rash (Definition)

A skin rash is a symptom in which a person has changes on part or all of his skin, such as color changes, bumps, blisters, oozing, peeling, ...Read more


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Hi, Is peri oral dermatitis contagious? I have been started on lymecycline, when can I expect to see results of my symptoms disappearing? Georgi

Hi, Is peri oral dermatitis contagious? I have been started on lymecycline, when can I expect to see results of my symptoms disappearing? Georgi

Depends on cause: Perioral dermatitis means irritation of the skin by the mouth. By itself it is not contagious. However, there are many causes for dermatitis, some of which are infectious in nature. So what is the cause of the dermatitis in your case? Do you have a diagnosis of the cause? While limecycline is an antibiotic, it is also used to treat skin diseases like acne, so that is not enough to answer ur questi ...Read more

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Is dermatitis very contagious?

Is dermatitis very contagious?

Depends on what kind: Depends on what kind of dermatitis. That's a very nonspecific term for any rash of the skin. Sone rashes are infectious in nature such as tinea corporis (ringworm) or impetigo (staph infection). ...Read more

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I heard that dermatitis is highly contagious. How contagious is it really?

I heard that dermatitis is highly contagious. How contagious is it really?

Variable: Dermatitis is a broad term meaning "inflammation of the skin" there are some conditions mostly microbial (virus/bacteria) that are spread by direct contact. There are some spread by other means like chicken pox which is caught by spread of "fomites" or sputum like the common cold. In general barrier protection and careful hygiene are optimal in reducing the spread of many but not all dermatitis. ...Read more

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How long should a rash last if not contagious?

How long should a rash last if not contagious?

Varies: This question is so open ended. Hours, days, weeks, months, years- depends upon the cause. Lets get a diagnosis! ...Read more

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Rash on the back of the neck, any concern about being contagious?

Rash on the back of the neck, any concern about being contagious?

See your doctor: Rashes are notoriously difficult to diagnose online. You should see your family practice physician and have him look at it to determine the type of rash as well as the best treatment. ...Read more

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Pityriasis rosea rash. Is it contagious to newborn babies?

Pityriasis rosea rash. Is it contagious to newborn babies?

Have never seen it: Although I probably se a half dozen cases of pr /yr I have never seen it in a newborn in three decades + of practice. I do remember one case in a toddler about 18 mo, but none younger. ...Read more

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Is roseola no longer contagious once the rash has come out?

Is roseola no longer contagious once the rash has come out?

More or less: Since this virus is contagious before the fever or rash occurs great efforts to exclude the kid from contact with others is not very helpful. They can return to day care or school 24-48 hrs after the fever is gone even if some rash persists. Routine efforts to limit exposure to saliva should continue as it would before the illness. ...Read more

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Is herpes rash contagious? Specifically what kind of skin to skin contact will spread herpes?

Is herpes rash contagious? Specifically what kind of skin to skin contact will spread herpes?

Herpes: It is still contagious even after the lesions have healed and they don't look like they are there, although when there are vesicles with fluid in them it is more contagious any kind of skin to skin contact can spread herpes. Asymptomatic people infected with hsv1 or hsv2 can still transmit the virus. The virus replicates on mucocutaneous surfaces and infects sensory nerve terminals and nucl. ...Read more

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What to do if I have shingles and the rash has already scabbed and fallen off. Am I still contagious?

What to do if I have shingles and the rash has already scabbed and fallen off. Am I still contagious?

Not likely: This lesions being dry and essentially gone are beyond the contagion stage. ...Read more

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I have a rash of dots all over my body not itchy my friend has a contagious rash no answer as to what it is do u think it's measles I have 2 lumps?

I have a rash of dots all over my body not itchy my friend has a contagious rash no answer as to what it is do u think it's measles I have 2 lumps?

See Dr.: Diagnosing rashes over the computer is next to impossible. I would see a dr. To get a proper exam and diagnosis/treatment. Measles is unlikely at 37, assuming you were immunized appropriately. ...Read more

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Is a rash up and down legs contagious?

Is a rash up and down legs contagious?

Can't say without: Determining the cause of the rash. Medical evaluation would help to diagnose the rash. ...Read more

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Is a rash at base of penis on toddler contagious?

Is a rash at base of penis on toddler contagious?

Probably not.: Most rashes in toddlers in the diaper/genital area are secondary to the warm moist environment. It could be a yeast infection or a contact dermatitis. It is less likely to be a bacterial infection, which could be contagious. You should have it seen by his doctor to be sure ...Read more

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Contagious itchy skin with no rash until scratched?

Contagious itchy skin with no rash until scratched?

Some thoughts...: Without a picture it's very difficult to diagnose a skin condition, and what you're describing can have many different causes. It could be a mild eczema, a fungal infection, a viral exanthem, a reaction to something you've come in contact with (a new perfume, lotion, soap), bug bites... It's a long list. If otc Hydrocortisone or Benadryl (diphenhydramine) isn't helping, make sure to check in with your doc! ...Read more

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My niece has got the CMV virus. She had a rash since monday 20 Nov. When did she become contagious?

My niece has got the CMV virus. She had a rash since monday 20 Nov. When did she become contagious?

CMV: Infectious period is right before the rash...CMV is only dangerous in pregnancy. Usually individuals do not know that they have the virus. If she has been in contact with women who are pregnant, they should be told and should see their OB's. ...Read more

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Is shingles contagious when the rash appears but blisters have not formed yet?

Is shingles contagious when the rash appears but blisters have not formed yet?

Shingles contagious?: 32 F asks: Is shingles contagious when the rash appears but blisters have not formed yet? ANS: S is due to reactivation of virus from previous episode of chicken pox in you and is not contagious now but was first time. Discuss with your Dr as they know you best and you did not tell us if you have other health problems. Take pictures now and take with you. ...Read more

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My daughter has been throwing up for 8 days now. She broke out in a rash that went away and came back worse today. Is she still contagious?

VOMITING-RASH: She should be seen by md for vomiting x 8 days. She can be dehydrated if no adequate fluid intake was given. Rash can be viral but only the md can diagnose it. ...Read more

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What are the possible causes of a yeast related skin rash in an infant? How long does it take to clear up with an ointment & is it contagious?

What are the possible causes of a yeast related skin rash in an infant? How long does it take to clear up with an ointment & is it contagious?

Part of life: Yeast is around us in the environment & by later infancy at least 5% of the dry weight of poo is yeast. The skin surface is resistant to yeast unless irritated or over hydrated (like wearing diapers). The yeast creates a rash when it takes the opportunity of a simple exposure & sets up housekeeping on irritated skin. Improvement with rx occurs within days. ...Read more

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I am caregiver of 5 years old boy he has fifth dissease and his cheek have red rash. I never have fifth dissease in my life, can I get contagious?

I am caregiver of 5 years old boy he has fifth dissease and his cheek have red rash. I never have fifth dissease in my life, can I get contagious?

Not likely but maybe: 5th's disease is caused by human parvo virus b19 and more common in kids. Most adults are already immune from childhood exposure.
It usually takes 4-21 days after exposure to become sick.
The infected patient is most contagious right before the rash appears. So symptomatic patients do not require quarantine.
You may not recall having the illness but were most likely
exposed as a child. ...Read more

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Sharp nerve pain from shingles has gone from 9 to 4 but the site of the "rash" is still itchy (but diminishing) is this common & am I still contagious?

Sharp nerve pain from shingles has gone from 9 to 4 but the site of the "rash" is still itchy (but diminishing) is this common & am I still contagious?

Depends.: Shingles (herpes zoster) is only contagious by contact with the vesicles until they all crust over. How long it takes to heal can depend on where they are and your overall health. Usually the rash disappears in a couple of weeks. Eat plenty of fruits and veggies to get the nutrients you need to help healing, ...Read more

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Spouse has strep with a rash, scarlet fever. How serious/contagious is that?

Spouse has strep with a rash, scarlet fever. How serious/contagious is that?

Very.: Strep is quite contagious; but after a few days of an effective antibiotic therapy, the contagion risk drops dramatically. ...Read more

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How long after a child begins treatment for ringworm rash would he be considered non-contagious?

A day or two...: ...After starting a good topical antifungal agent, there is little if any chance of spreading the infection to others - assuming, of course, that the antifungal cream is being applied diligently, twice a day. ...Read more

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How long is staph folliculitis contagious after beginning an oral antibiotic? The rash is not spreading and is fading, but still visible.

Not: Staph is generally everywhere.
There are various types:
staph albus common on skin.
Staph aureus -yellow more pathogenic.
Usually not contagious like a virus or some bacteria.
Clean and cover area and unlikely to be able to infect someone else. ...Read more

Dermatitis (Definition)

Dermatitis means inflammation of skin. Contact dermatitis, allergic contact dermatitis and seborrheic dermatitis are ...Read more


Dr. Cornelia Franz
1,059 Doctors shared insights

Rash (Definition)

A rash is a change to skin condition which can affect color, appearance, or texture. It may or may not ...Read more