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Doctor insights on: Causes Of Pimple Like Rash On Armpit

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What could cause rash/pimples in the armpit?

What could cause rash/pimples in the armpit?

Many things: Folliculitis, contact dermatitis (to clothes or antiperspirant); bacterial, viral or fungal infection, hyperhidrosis (sweating too much), on and on. If it is bothersome, see your doctor for a definitive diagnosis. ...Read more

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Dr. Cindy Juster
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Dr. Cornelia Franz
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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


Dr. Cindy Juster
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I have a rash its beat red with things that look like pimples theres puss like substance with a bad odor under my entire right armpit what could it be?

I have a rash its beat red with things that look like pimples theres puss like substance with a bad odor under my entire right armpit what could it be?

Infection: It can be an infection of the sweat glands, it is time to see your doctor about it and they can help and see if you need to see a dermatologist if this is a recurring problem. ...Read more

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Red Rash in armpits with painful swollen Lymph nodes but its not itchy, pimple like blisters, a few boils. Cream not working.

Red Rash in armpits with painful swollen Lymph nodes but its not itchy, pimple like blisters, a few boils. Cream not working.

See your doctor ASAP: It is difficult to tell without looking at your rash and examine your armpits. You may need surgical drainage if you have boils or abscess, and antibiotic if you have cellulitis. Please go to see your doctor or urgent care ASAP for definitive diagnosis and specific treatment. ...Read more

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Have a dry rash with tiny pimples and a couple lumps under armpit. is painful to move arm around?

Have a dry rash with tiny pimples and a couple lumps under armpit. is painful to move arm around?

Warmth,Pain med, I&D: You may have inflammation of a local sweat gland or hair follicle which can be quite painful. Warm compress/ heat pad to the area and acetominophen or ibuprofen for the pain might help. However there may be a collection of "pus" which may require drainage. See your doctor for this treatment. ...Read more

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My 14 month baby has tiny pimples all over her thigh. What causes rashes like that?

My 14 month baby has tiny pimples all over her thigh.  What causes rashes like that?

Lots of causes...: ...Including allergy to diapers or baby wipes or moisturizing cream, or direct irritation by harsh soap. Could also be a virus, which is sometimes accompanied by a fever, but not always. There are other, more exotic causes; your quickest solution is to see your pediatrician or a dermatologist and get a precise diagnosis and treatment. ...Read more

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Dr. Cindy Juster
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Can an armpit boil cause breast pain? It looks like a pimple. And some have black centers. There not very big. I had just one for 5 years

Can an armpit boil cause breast pain? It looks like a pimple. And some have black  centers. There not very big. I had just one for 5 years

Sebaceous cyst: This sounds like a noncancerous lump called a sebaceous cyst. They can get infected and become painful. I recommend you see a general surgeon or breast surgeon who can evaluate you. ...Read more

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What could cause little pimple looking things in the armpits of my child?

What could cause little pimple looking things in the armpits of my child?

Molluscum: These could be small warts called molluscum which are common in children. Typically they are rounded . A natural treatment is molluscumrx. ...Read more

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What causes pimples and a lymph node in my armpit?

What causes pimples and a lymph node in my armpit?

Infection : Folliculitis, a furuncle, or hidradenitis suppurativa are all infections that can cause these symptoms. They can be treated with a combination of oral antibiotics and incision and drainage if necessary. Consult a dermatologist to evaluate and treat this. ...Read more

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I have some pimples in my armpit and one swollen lymph node. What could be the cause?

I have some pimples in my armpit and one swollen lymph node. What could be the cause?

Monitoring Centers: Lymphatic system absorbs/carries things too big to go into the arteries/veins like bacteria eaten by white cells and digested food. Lymph nodes "taste" the lymph for anything bad like bacteria, viruses, cancers, etc. When it detects a problem, it alerts the immune system and your body reacts. They enlarge in response to the inflammation they create when they react. They shrink when all is well. ...Read more

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Axilla (Definition)

Area of human body directly under the joint where the shoulder connects to the arm. It contains axillary vessels, brachial nerve plexus, lymph nodes & vessels, axillary ...Read more


Dr. John Chiu
2,275 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


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Dr. Cindy Juster
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