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Doctor insights on: Causes Of Small Red Itchy Bumps On The Left Arm

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I just got red, itchy bumps on my upper left arm out of nowhere. What could have caused this?

I just got red, itchy bumps on my upper left arm out of nowhere. What could have caused this?

? Hives: Sounds like you may have hives which would be an allergic reaction. You can try taking some Benadryl (diphenhydramine) and see if that helps. If the rash persists, spreads, or you develop fever, make sure you get in to see you physician. Good Luck!

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Dr. Doanh Nguyen
637 Doctors shared insights

Itchy Rash (Definition)

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


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I have a few clusters of 2-3 small red itchy bumps on my forearms. The ones near my arm fold spread to my upper arm when they get blistery. Help?

I have a few clusters of 2-3 small red itchy bumps on my forearms. The ones near my arm fold spread to my upper arm when they get blistery. Help?

Poison ivy?: Cluster of skin lesions could be from poison ivy to herpes simplex, and many different conditions. Poison ivy type of contact allergy should have some history of exposure. If it stays on one area for a long time without spreading, herpes simplex maybe considered.

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What causes red itchy bumps on the arms and elbows?

What causes red itchy bumps on the arms and elbows?

Rash on Arms: Dermatitis herpetiformis is an extremely itchy rash made of bumps and blisters. The rash is chronic, which means it continues over a long period of time. This rash occurs on the arms and elbows. Other causes include eczema, allergies, contact dermatitis, psoriasis and others. See your dermatologist for a diagnosis and treatment.

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I have red itchy bumps on my arms and neck recently changed bed covers what are they from? Also have a cluster of small bumps on knee they're very red

I have red itchy bumps on my arms and neck recently changed bed covers what are they from? Also have a cluster of small bumps on knee they're very red

Hard to say: But one would suspect something from the new bedspread might be the cause- although it may have nothing to do with it at all. If you have put away the new bedspread and continue to have the skin rash more than a week after, consider seeing a dermatologist. In the meanwhile, try topical hydrocortisone cream.

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I have this rash of small red itchy bumps spread out. For 5 days. On upper back, arms, inner thigh, sides. 39wks preg. What should I do? What is it

I have this rash of small red itchy bumps spread out. For 5 days. On upper back, arms, inner thigh, sides. 39wks preg. What should I do? What is it

Take a medication: The rash that you describe can be due to many causes. At this point you can take an otc class b antihistamine such as Cetirizine 10mg and apply an anti-itch cream such as sarna with pramoxime (not benadryl). If no better or worsening, see you physician.

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There are little red itchy bumps on my arms and left leg that look like insect bites but appear out of no where and burn under warm water. Any ideas?

There are little red itchy bumps on my arms and left leg that look like insect bites but appear out of no where and burn under warm water. Any ideas?

Possible: Some people can get a "heat rash" that worsens when the skin is hot and usually gets better when cooled. However, to really be certain you should have this problem examined.

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My daughter has red itchy bumps on her arms and feet. What could be the cause? She was diagnosed with a staph infection but the bumps persist. Bed bugs were mentioned but she is the only person being bitten. Could this be an allergic reaction to something

My daughter has red itchy bumps on her arms and feet. What could be the cause? She was diagnosed with a staph infection but the bumps persist. Bed bugs were mentioned but she is the only person being bitten. Could this be an allergic reaction to something

This: This is tough to answer without a picture. There are several possibilities including bites (fleas or other), eczema or allergic contact dermatitis, lichen planus, folliculitis (staph infection), and others. I doubt bed bugs given the location. I would recommend you try a moisturizer such as cerave cream twice daily and if not better after a few days consider a trip to the dermatologist for diagnosis and treatment options. Bites are common in kids so that is certainly a possibility. If they are bites, avoidance plus a steroid gel might be beneficial. I hope that helps.

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What causes an itchy rash that is a red patch with little bumps in it and is located on the inside of my upper arm near my arm pit.?

What causes an itchy rash that is a red patch with little bumps in it and is located on the inside of my upper arm near my arm pit.?

Not sure - eczema?: This can't be diagnosed with the information that is available. A history, physical examination & other studies may be needed to determine cause/causes.

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I been getting red itchy bumps in upper thigh, back, and arms and want to know what's the cause of it?

I been getting red itchy bumps in upper thigh, back, and arms and want to know what's the cause of it?

Fungal dermatosus: A of dermatological conditions that can cause non specific papules that itch in the sweat gland distribution of the axilla, upper back and groin. The most common dermatoses seen in moist skin clad regions of the body are fungal. Excessive sweat alone can cause the formation of itchy papules, pustules and abscesses called hydradenitis. Try a fungal powder, Benadryl cream and 1% hydrocortison

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I woke up with red small itchy bumps on my lower stomach yesterday and today I have a few on the top abdomen, and even one on my arm. What could it be?

I woke up with red small itchy bumps on my lower stomach yesterday and today I have a few on the top abdomen, and even one on my arm. What could it be?

Itchy bumps: Can be from different causes, you need to have them checked by a doctor to identify them ANS treat them properly.

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I have these small red random itchy bumps that look like bites on my stomach, shoulders, backs and arms what can they be?

I have these small red random itchy bumps that look like bites on my stomach, shoulders, backs and arms what can they be?

Many: If these have been present for more than a few weeks or are getting worse, consult a dermatologist. Skin rash usually requires a direct examination for diagnosis and treatment.

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Hello, I have itchy bumps-bra area, panty line area, base of neck, arms, back that look like mosquito bites that are raised, white & red, wide & small?

Hives: Raised itchy bumps could be hives, which are due to a whole host of causes. Anthistamine medication could reduce the bumps and itch if truly hives. However, a photo of your rash is very important. Either consult a physician on this site with a photo or in person, or see a doctor in person to diagnose if the rash does not improve.

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Small red bump on top of vein on arm and leg? The diameter of a vein. Also some huge white itchy bumps from mosquito bites. I'm on vacation in zagreb.

Small red bump on top of vein on arm and leg? The diameter of a vein. Also some huge white itchy bumps from mosquito bites. I'm on vacation in zagreb.

Wish could: See a picture but can't. Could it be a bug bite too? If it's new maybe that's it. If not better get it seen when back deem vacation. If you can get some1% hydrocortisone creame try it but doubt you will find it there. Enjoy your vacation

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What causes scattered red and itchy bumps on back, neck, chest arms after a day in the sun swimming on the river? Don't believe it to be any poision ivy oak or sumac.

What causes scattered red and itchy bumps on back, neck, chest arms after a day in the sun swimming on the river? Don't believe it to be any poision ivy oak or sumac.

Heat Rash: Sounds like you had heat rash. It should go away fairly rapidly. If you search about heat rash you will see pictures and a host of information far beyond my 400 word answer.

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I have small red bumps that look like pimples on my upper arms that are itchy! No idea why? I waxed my arms about a week ago, very itchy bumps

I have small red bumps that look like pimples on my upper arms that are itchy! No idea why? I waxed my arms about a week ago, very itchy bumps

Folliculitis: Inflammation of the hair follicle occurs for many reasons, but when associated with shaving usually is caused by a dull razor, sensitivity to the shaving/ hygeine product or friction by clothing. Trauma from hair extraction through waxing may also produce this.

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I have small red, VERY itchy bumps on the inside of my elbow. It seems to be getting bigger. Help!

I have small red, VERY itchy bumps on the inside of my elbow. It seems to be getting bigger. Help!

Itchy red elbow bump: There are a lot of things this could be like a contact dermatitis. You could try an over the counter hydrocortisone cream. If that does not work then you may need to see a dermatologist

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I started with small flesh colored bumps inside my elbow and that turned into red itchy bumps. I now have itchy bumps on my upper inner thigh also.

I started with small flesh colored bumps inside my elbow and that turned into red itchy bumps. I now have itchy bumps on my upper inner thigh also.

Many causes: Often we have no idea on the cause for these bumps. You may try a topical Hydrocortisone ointment or cream on them for a few days. If problem fails to resolve or starts to spread, see your doctor or dermatologist.

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I continuously get red itchy bumps on my right arm?

I continuously get red itchy bumps on my right arm?

Bumps: This can't be diagnosed with the information that is available. A history, physical examination & other studies may be needed to determine cause/causes. Once accurately assessed a treatment plan can be developed.

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I have these red itchy bumps on my side under my arm?

I have these red itchy bumps on my side under my arm?

Fungus: If you sweat a lot and rash is itchy and located under you axilla, possibly cutaneous candidiasis. Try over the counter anti-fungal cream. If no improvement, follow up with pcp.