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Doctor insights on: Itchy Rash On Upper Arm

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What could cause itchy red rash under upper arm and back of knees?

What could cause itchy red rash under upper arm and back of knees?

Many possibilities: Possibilities are intertrigo, eczema, inverse psoriasis, contact dermatitis, candida (yeast). See a doctor or dermatologist for proper diagnosis and treatment. ...Read more

Dr. Cornelia Franz
1,060 doctors shared insights

Rash (Definition)

Most bumps and blotches on a newborn baby are harmless and clear up by themselves. By far the most common skin problem in infants is diaper rash. Diaper rash is an irritation of the skin caused by dampness, urine, or feces. Most babies who wear diapers will have some type of diaper rash. However, there are other skin disorders that can cause rashes. These are usually not serious unless ...Read more


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I have a red itchy rash on both my shoulders/upper arm. The patches are dry and vary in size. They are not oozing but they do itch. Is it eczema?

I have a red itchy rash on both my shoulders/upper arm. The patches are dry and vary in size. They are not oozing but they do itch. Is it eczema?

Depends: What you have is a skin rash which may sometimes be loosely called eczema by some. The potential causes range from a contact allergy , fungal infection to psoriasis. If topical hydrocortisone does not help, you would need to consult your doctor or a dermatologist. ...Read more

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What causes an itchy rash that is a red patch with little bumps in it and is located on the inside of my upper arm near my arm pit.?

What causes an itchy rash that is a red patch with little bumps in it and is located on the inside of my upper arm near my arm pit.?

Not sure - eczema?: This can't be diagnosed with the information that is available. A history, physical examination & other studies may be needed to determine cause/causes. ...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 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 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

Dr. John Chiu
2,490 doctors shared insights

Skin Rash (Definition)

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


Dr. Doanh Nguyen
592 doctors shared insights

Itchy Rash (Definition)

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