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Doctor insights on: Small Itchy Rash Traveling Up My Arm

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Dr. John Chiu
2,661 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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I have one small itchy rash on my arm it's the only rash I have and I don't know what it is. Do you have any idea?

I have one small itchy rash on my arm it's the only rash I have and I don't know what it is. Do you have any idea?

No idea w/o eval.: These lesions need to be visualized & a history needs to be obtained in order to make an accurate diagnosis. Sometimes lab testing or biopsy is necessary. Read more

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I get an itchy rash on my right arm once every 4 weeks. It goes away in 4 or 5 days. The skin is bumpy with small red pimples only in that area. WHY?

I get an itchy rash on my right arm once every 4 weeks. It goes away in 4 or 5 days. The skin is bumpy with small red pimples only in that area. WHY?

ITCHY BUMPS ARM: YOU MUST BE A DETECTIVE.
WHAT DO YOU DO EVERY FOUR WEEKS THAT YOU DO NOT DO AT OTHER TIMES?
HOBBIES?
WORK?
YOU ARE PROBABLY TOUCHING SOMETHING OR DOING SOMETHING THAT YOU DO NOT DO IN THE OTHER THREE WEEKS.
BE A DETECTIVE AND WRITE BACK WHEN YOU FIND OUT WHAT IT IS. . . Read more

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I have a small blistery, itchy rash on the inside of my elbow. What is it?

Not sure: These lesions would need to be examined, a history obtained & other tests may be necessary in order to diagnose them. Usually the lesions needs to be identified to determine the solution. Read more

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I have a blotchy itchy rash on my chest and arms. What is it?

I have a blotchy itchy rash on my chest and arms. What is it?

Can't diagnose this: Without a medical history and visualization of the rash. Read more

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Arm pain, no injury. Splotchy non itchy rash?

Arm pain, no injury. Splotchy non itchy rash?

Can't diagnose with: This info. These lesions would need to be examined, a history obtained & other tests may be necessary in order to diagnose them. Usually the lesions needs to be identified to determine the solution. Read more

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What is a dry itchy rash? Only on arms and back

What is a dry itchy rash? Only on arms and back

Dry itchy rash: It is difficult to give an accurate diagnosis without a picture of your skin. The most common cause of dry itchy skin with or without a rash at this time of year is "winter itch." with the cold air outside and the air usually overheated and dry inside your skin gets all dried out. The treatment is with lots of moisturizer and humidifiers indoors. Other causes would be fungal rashes or allergies. Read more

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I have a itchy rash in my under arms, what can cause that?

I have a itchy rash in my under arms, what can cause that?

Fungus or deoderant: I have found that the most common causes of underarm itching are from fungual infections and irritating deodorants. Read more

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I have a itchy rash on the bends of her arms.

I have a itchy rash on the bends of her arms.

Diagnosis for rash?: These lesions need to be visualized & a history needs to be obtained in order to make an accurate diagnosis. Sometimes lab testing or biopsy is necessary. Read more

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My son has a itchy rash all around his neck on his shoulders and arms what could it be?

My son has a itchy rash all around his neck on his shoulders and arms what could it be?

More info.: A description of the rash would help pinpoint the cause.
I do not want to speculate about the different possibilities. Read more

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I have itchy rash with bumps on elbow going up and down arm. What is it?

I have itchy rash with bumps on elbow going up and down arm. What is it?

How long?: How long have you had this problem? If it has been present for less than a couple of weeks, a viral infection or drug reaction may be the cause. See your doc if this goes beyond a couple of weeks or gets more severe. Read more

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I have a rash from some sort of weed I was pulling, causing a itchy rash on my arms. What do I use to heal it?

I have a rash from some sort of weed I was pulling, causing a itchy rash on my arms. What do I use to heal it?

Contact dermatitis: Contact dermatitis is caused by a substance you're exposed to that irritates your skin or triggers an allergic reaction. The substance could be one of thousands of known allergens and irritants. Some of these substances may cause both irritant contact dermatitis and allergic contact dermatitis. First line therapy is usually avoidance of the trigger, and topical steroid creams. Read more

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Itchy rash on my arms that spread burns when I scratch it?

Itchy rash on my arms that spread burns when I scratch it?

Many possibilities: There are many things that could cause the skin to itch. Several types of inflammatory conditions of the skin, allergic reactions, and sometimes bacterial, viral or fungal infections can cause rashes on the skin. Insect bites can also be the cause of a rash on the skin. Have it evaluated by a professional and get the appropriate treatment. Read more

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I have a white itchy rash on my back chest and arms. How to treat this?

Agree w Dr. Rafat.: These lesions need to be visualized & a history needs to be obtained in order to make an accurate diagnosis. Sometimes lab testing or biopsy is necessary. Read more

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What would cause an intensely itchy rash on neck, arms, & legs?

What would cause an intensely itchy rash on neck, arms, & legs?

Different causes: There are different causes of this type of rash includung allergy to foods, medications, etc. Have a physician or dermatologist evaluate the rash if still present. In the meantime if you're uncomfortable you could take Benadryl (diphenhydramine) for the itch but be aware that it can cause drowsiness. Claritin is less effective but does not cause drowsiness. Read more

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I have a painful, itchy rash on my arm after I got my flu shot. What should I do?

I have a painful, itchy rash on my arm after I got my flu shot. What should I do?

Ice: If at your injection site, ice, benadryl (diphenhydramine) and let your doctor know. If it is all over the place consider getting checked out sooner for a serious allergic reaction. Read more

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I have a non itchy rash on my left arm and chest that spread to my neck and back over night. What could it be?

I have a non itchy rash on my left arm and chest that spread to my neck and back over night. What could it be?

Many causes: If it lasts for less than a couple of weeks, then I won't pay much attention to it. But if it gets painful, it may be from shingles and you need to see your doctor ASAP to get started on an anti-viral drug to reduce potential complications. Suspect shingles if the rash does not extend beyond the mid-line of the body. Read more

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I have a cut on my arm and all of a sudden it has an extremely itchy rash around it, is this some sort of allergic reaction?

I have a cut on my arm and all of a sudden it has an extremely itchy rash around it, is this some sort of allergic reaction?

Cut and Allergy: Allergic contact dermatitis (acd) due to topical antibiotics is very common. Neomycin and Bacitracin are in the top ten most common allergens to cause allergic contact dermatitis. 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


Dr. Doanh Nguyen, md, faaaai
646 Doctors shared insights

Itchy Rash (Definition)

Most itchy rashes are called eczema or dermatitis. Both are due to ...Read more