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Doctor insights on: Pimple Like Rash On Underarm

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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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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 these pimple like dots on my chest all over and they seem to be itchy now and it might be increasing in location now are they rashes?

I have these pimple like dots on my chest all over and they seem to be itchy now and it might be increasing in location now are they rashes?

Rash: Rashes are hard to diagnose sometimes when you are looking at them. Impossible to diagnose without even seeing them. Sounds like yours may be infected. You need to see your doctor. ...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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What are pimples or allergic rashes?

What are pimples or allergic rashes?

Itch vs irritation: An allergic skin reaction is often associated with itching and usually has no pus.. Depends on the immune mechanism , it should lasts from hours to no more than a week without further contact. Pimples at your age usually occur around the mouth and are probably hormonally related. Pimples don't itch and there is also a white head associated with it. ...Read more

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Can you tell me what are pimples or allergic rashes, what's the difference?

Can you tell me what are pimples or allergic rashes, what's the difference?

Different diseases: Pimples is a layperson's name for the lesions of acne. There are several kinds of allergic rashes several: Allergic urticaria (hives); angioedema (swelling of the lips, eyelids, of the skin, hands, etc); atopic dermatitis (allergic eczema) affecting mainly babies and children, usually due to food or environmental allergy; allergic contact dermatitis (allergy to nickel, perfumes, soaps etc.) ...Read more

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