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Doctor insights on: 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

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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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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I have a pimple like thing in my armpit( not in red color,color of skin) with little irritation when touched?

I have a pimple like thing in my armpit( not in red color,color of skin) with little irritation when touched?

Axillary mass: Could be just that,..a type of infected pimple, cyst, abscess, boil, furuncle, or a lymph node. Have it checked out if it does not go away with warm compresses and local care. Good luck. ...Read more

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I feel very very small lump or pimple in my armpit. At times i can feel it clearly and other times it is like it has moved. What can this be?

I feel very very small lump or pimple in my armpit.  At times i can feel it clearly and other times it is like it has moved.  What can this be?

Probably lymph node: You are probably feeling a very small lymph node, i see that you have or have had enlarged lymph nodes. If it seems to be increasing in size or causes discomfort, you should see your doctor and get it checked out. ...Read more

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I have a small spot under my armpit, but it's got painful the spot is only like a pimple however it has a small black dot on it, what could it be?

I have a small spot under my armpit, but it's got painful the spot is only like a pimple however it has a small black dot on it, what could it be?

Abscess/folliculitis: Most women shave their arm pits. Occasionally bacteria gets imbedded under the skin or in the hair follicules of the arm pits. Your description sounds like you may have an infected area with a blackhead on the surface. You may try hot compresses to the area and antibacterial soap and water wash 3 times per day. If no improvement in 2-3 days, see your MD for possible antibiotics or drain abscess. ...Read more

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I keep getting pimple like bumps in my armpit. I had one recently drained but 3 weeks later I've 3 small ones. They are quite painful and come and go?

I keep getting pimple like bumps in my armpit. I had one recently drained but 3 weeks later I've 3 small ones. They are quite painful and come and go?

Could be: something else. With a description like that I would be concerned about hidradenitis. It is a condition where the sweat glands become infected and cause repeated infections and abscesses in the areas of apocrine sweat glands (underarms, groin, under the breasts). You should see your primary care doc. Antibiotics and conservative therapy first, but surgery is sometimes necessary. ...Read more

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I have a big pimple like painful bump near my armpit?

I have a big pimple like painful bump near my armpit?

Cyst : Inflammation or infection from a painful pimple or cyst may be drained, injected with corticosteroid, warm compresses applied and or treated with antibiotics . See a dermatologist for proper diagnosis and treatment ...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
2,561 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