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Doctor insights on: Itchy Rash On Left Arm

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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. Cornelia Franz
1,059 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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Paracetamol allergy; whenever i take my first dose of paracetamol, itchy rashes will occur on my left arm. Having this almost 2yrs and im 30?

Paracetamol allergy; whenever i take my first dose of paracetamol, itchy rashes will occur on my left arm. Having this almost 2yrs and im 30?

Drug allergy: Some people can react to paracetamol, but having the rash only on your left arm is sugestive of a fixed drug eruption and is not necessarily secondary to a systemic allergy. Did using other pain killers, such as Ibuprofen or Aspirin cause any problems? If not you can use them for pain control. ...Read more

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I have an itchy rash that comes and goes on my lower left arm. I have ruled out\nfood, cosmetic, or chemical alergy. Any idea?

I have an itchy rash that comes and goes on my lower left arm.  I have ruled out\nfood, cosmetic, or chemical alergy. Any idea?

Evaluate professiona: You may have a number of things that could be better identified in person by a professional. Some could be serious like yeast or fungal infections, to diverse or psoriasis. Sun or stress, it is difficult to tell, but see a professional and save the guesswork. ...Read more

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I have non itchy rashes like pimples on my right arm (wrist to elbow) and a little on left arm. I am not on medication or has changed my diet. ?

I have non itchy rashes like pimples on my right arm (wrist to elbow) and a little on left arm. I am not on medication or has changed my diet. ?

Recent rash?: This may be from a viral infection or a drug reaction. If the problem goes away after 10 days, don't worry about it. If the rash persists, then see a dermatologist. If pus is present , consider impetigo It is unlikely to be an allergic reaction in the absence of itching. ...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?

Rash: Hello and welcome to HealthTap:) If you can share a picture; or show it to me via virtual consult; it would be very helpful, that way I can confirm the type of lesion. Thank you Take care! ...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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Dr. John Chiu
2,559 doctors shared insights

Skin 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


Dr. Doanh Nguyen
606 doctors shared insights

Itchy Rash (Definition)

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