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Doctor insights on: Causes Of Pimple Like Bums On Arm Or Leg

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I have a rash that start off as a small pimple and evolves to look like a burn mark. It's on my legs, waist, arms(severe) and neck. What can this be?

I have a rash that start off as a small pimple and evolves to look like a burn mark. It's on my  legs, waist, arms(severe) and neck. What can this be?

Exanthems (= rashes): such as yours are often impossible to diagnose with out the MD having the advantage of " laying eyes on it." Photos of good resolution can help but won't supplant good clinical evaluation. There are so many possibilities it wouldn't help anything to try to narrow down with such little information. On the other hand, a good dermatologist usually can nail it in a few minutes in person. ...Read more

Dr. J. Lawrence Dohan
2,453 doctors shared insights

Pimples (Definition)

A pimple is a small inflamed spot on the skin. Also known as zit, ...Read more


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I have red bumps/ pimple like on my arms, some on legs and feet. It itches. What's the cause of this?

I have red bumps/ pimple like on my arms, some on legs and feet. It itches. What's the cause of this?

Keratosis pilaris : rubra. Keratosis pilaris occurs when the human body produces excess amounts of the skin protein keratin, resulting in the formation of small, raised bumps in the skin often with surrounding redness. Harmless. See a dermatologist if concerned. ...Read more

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I have tiny pimple like bumps on my arm and legs. They don't itch or bother me. When i scratch them they turn white. What could they be?

I have tiny pimple like bumps on my arm and legs. They don't itch or bother me. When i scratch them they turn white. What could they be?

Keratosis pilaris: These are more of a cosmetic issue than anything serious. Some people hate them and use a loofa to scrape them off of the backs of their arms. They happen more in kids and teens and less in adults. You might try some low-potency Hydrocortisone cream to see if that might smooth out these little bumps on the skin. ...Read more

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My baby has red pimple like bumps on her arm and leg, they look almost like bug bites. They just appear. What could they be?

My baby has red pimple like bumps on her arm and leg, they look almost like bug bites. They just appear. What could they be?

Newborn rash: If your baby is a newborn, then it's most likely the common newborn rash erythema toxicum. The rash should clear on its own. No treatment is needed. However, there are similar looking rashes that do need medical attention, so check with your baby's doctor. Here's a link for pic and info: www.Webmd.Com/skin-problems-and-treatments/picture-of-erythema-toxicum-neonatorum. ...Read more

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I have pimple like dots on my arms and legs they have all of a sudden appeared over the last month what could this be and how do I treat it?

I have pimple like dots on my arms  and legs they have all of a sudden appeared over the last month what could this be and how do I  treat it?

Folliculitis?: Each hair follicle is related to a small gland to lubricate it and prevent dryin out. Sometime these can become inflammed and cause small red bumps. Get it checked out to be sure it isn't an allergic reaction or viral infection. ...Read more

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I have pimple-like spots in my legs and arms. I don't know what is it? Why did i get these? How to treat this? Please help me. Thank you.

I have pimple-like spots in my legs and arms. I don't know what is it? Why did i get these? How to treat this? Please help me. Thank you.

Need diagnosis first: before cause and treatment can be given. If you have dry skin, it is not uncommon to get plugged hair follicles called keratosis pili that can sometimes get inflamed, and is treated with moisturizers. If you have infection/folliculitis, this would be Rx with antibiotics. Or this may be some other type of rash. An exam by your doctor is a starting point. ...Read more

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32mth & 13mth old have small pimple like bumps on arms/legs and a couple on back. Not many at all. Could this be prickly hear? No temp.

32mth & 13mth old have  small pimple like bumps on arms/legs and a couple on back. Not many at all. Could this be prickly hear? No temp.

A picture ; history: When is comes to rashes there is no substitute for seeing, either directly or a pic. How long has the rash been there? Is is a long term rash or did is come in the last few days? Is the rash itchy? Could these be bug bites? I would recommend seeing your pediatrician if this rash doesn't go away in a few days or becomes worse. If is looks like this pic it is a form of warts. ...Read more

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My daughter has pimple like bumps all over her arms and some on he legs she has had them for a couple of years and they don't go away what could it be?

My daughter has pimple like bumps all over her arms and some on he legs she has had them for a couple of years and they don't go away what could it be?

Molluscum Contagiosu: Molluscum contagiosum is a disease of day care in children. After they are infected, it itches, so they scratch. They look like little whiteheads, to skin color donuts with a dimple in the middle. Very contagious, and she can self inoculate (spread by scratching). Can be frozen, cut, or curettes off, also can use "bettlejuice"..I don't recommend that, left large scars on my son. Check by derm! ...Read more

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Do the foods i eat have relation to the pimple-like spots in parts of my body such as leg, thighs, arms and shoulders? Even in my stomach i have but only few? How can i get rid of it?

Do the foods i eat have relation to the pimple-like spots in parts of my body such as leg, thighs, arms and shoulders? Even in my stomach i have but only few? How can i get rid of it?

Usually not, but...: If an individual person sees that a particular food, drink, activity, medication, etc..., repeatedly precedes a flare-up of acne-like spots, then he can ask his doctor whether or not it would be fine to avoid that particular item. If the spots are pustules that are not typical teen acne or young adult acne, he may need evaluation and treatment for a skin infection. ...Read more

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I recently had surgery and noticed red bumps on my left arm. They look like pimples & hurt, they started to accumulate on my legs too. What are they?

I recently had surgery and noticed red bumps on my left arm. They look like pimples & hurt, they started to accumulate on my legs too. What are they?

Maybe a drug allergy: This is not a normal finding. If you are on any new medications following your surgery, this may indicate an allergic reaction. Also, the antiseptic solution used in surgery to reduce infection can cause skin reaction in some patients. You should contact your surgeon to evaluate. ...Read more

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I have these pimple like bumps that started on my butt and spread down my legs and are now appearing on my neck face and arms they itch and are sore and if iscratch the form scabs but never really heal it has now spread to my arms face and neck and leaves

I have these pimple like bumps that started on my butt and spread down my legs and are now appearing on my neck face and arms they itch and are sore and if iscratch the form scabs but never really heal it has now spread to my arms face and neck and leaves

See a dermatologist: To make an accurate diagnosis you should see a skin doctor, but this sounds like an allergic reaction, either to something you are taking by mouth, or a contact dermatitis. If you have recently changed your shampoo, lotions, perfume, other, bring this info along with your visit to dermatologist. Hope the itching stops. ...Read more

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My 18 month old has a pimple like rash around her diaper line and on her arms and legs as well as blisters on the bottom of her feet?

My 18 month old has a pimple like rash around her diaper line and on her arms and legs as well as blisters on the bottom of her feet?

Many possibilities : Have her doctor take a look, as this sounds like a pattern that can accompany a viral or perhaps a bacterial infection. It might need time, or a prescription antibiotic cream/ointment, something else, or nothing. Give the doctor a a call and see what he advises. Hope this is helpful. ...Read more