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Doctor insights on: Allergy Red Bumps On Skin

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Dr. John Chiu
2,606 Doctors shared insights

Allergies (Definition)

Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and ...Read more


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I am having rash on arm, chest and shoulders, skin redness or irritation and skin rash (episodic itchiness, uniform tiny bumps, skin colored mostly). A nurse said it was allergic reaction & gave me centraben cream. Can allergy last more than a week?

I am having rash on arm, chest and shoulders, skin redness or irritation and skin rash (episodic itchiness, uniform tiny bumps, skin colored mostly). A nurse said it was allergic reaction & gave me centraben cream. Can allergy last more than a week?

Yes: If you are exposed to the item to which you are allergic, the symptoms will persist, even for years. It would be prudent to consult your doctor. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex. Get HPV vaccine

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Dry cough and red bumps on tounge. Is this an allergy?

Dry cough and red bumps on tounge. Is this an allergy?

Maybe: I would see my allergist or md to verify. Red bumps most likely just taste buds but dry cough can be allergy or other things so best to check.

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Big red bumps at his back. Red bump at eyelids. Medium red bumps left side of his face. Is it an allergy? What medicine should he take?

Big red bumps at his back. Red bump at eyelids. Medium red bumps left side of his face. Is it an allergy? What medicine should he take?

Maybe, can't say: Dermatology diagnoses are typically made visually. Then re-examined, or biopsied and looked via microscope, often with special stains, then blood tests are drawn. Hives, bites, viral rashes, contact allergy, medication allergy, too many possibilities here; get seen by provider. Use antihistamines first, low dose topicsl steroids. Think about possible exposure: plants, cosmetics, adhesives, etc.

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Red bumps under my nose, came after repeatedly blowing my nose due to allergies.

Red bumps under my nose, came after repeatedly blowing my nose due to allergies.

What's the question?: Do they hurt or itch? How long have they been present? We need more information to venture even a guess.

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If the small red bumps that come and go are hives due to allergy could this be developed over time to a laundry soap. And how long will it last?

If the small red bumps that come and go are hives due to allergy could this be developed over time to a laundry soap. And how long will it last?

Unlikely: The mechanism for contact allergy or an irritant reaction to laundry soap is different from that causing the bumps. Have you consulted an allergist about this?

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How can I determine if these itchy red bumps are bedbug bites or allergies?

How can I determine if these itchy red bumps are bedbug bites or allergies?

Distribution: Hives usually occur all over the body. Bedbug bites are usually limited to the legs and abdomen. Hives will respond to an antihistamine while bedbug bites wont.

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What may cause red bumps (rash) like allergy, to come and go away on arms and back? What are the causes?

What may cause red bumps (rash) like allergy, to come and go away on arms and back? What are the causes?

Keratosis Pilaris: Keratosis pilaris is a common skin condition in which a protein in the skin called keratin forms hard plugs within hair follicles. Causes, incidence, and risk factors keratosis pilaris is harmless (benign). It seems to run in families. It is more common in people who have very dry skin, or who have atopic dermatitis (eczema).

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Itchy, tiny red bumps all over body for two months and my doctors thought it was a prescription allergy. What could be wrong?

Itchy, tiny red bumps all over body for two months and my doctors thought it was a prescription allergy. What could be wrong?

Multiple things: Go back for follow up and let your doctor take a look as this may be allergic dermatitis, candida dermatitis or a host of other problems that only follow up can uncover. If necessary your doctor will refer you for a second opinion.

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Rash in groin. Red, itchy, small red bumps, white color in middle. Both sides of groin. No history of allergy. About a week now. What could it be?

Rash in groin. Red, itchy, small red bumps, white color in middle. Both sides of groin. No history of allergy. About a week now. What could it be?

How long?: There are many potential causes. If it lasts over 6 weeks, see an allergist. If it is short term, try some otc antihistamine up to 4 x the regular frequency but watch out for drowsiness. If it did not work, see an allergist.

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Red bumps under nose after wiping a lot, severe allergies. Didn't really hurt but itched a little bit. Vaseline helped and they went away less than week?

Red bumps under nose after wiping a lot, severe allergies. Didn't really hurt but itched a little bit. Vaseline helped and they went away less than week?

Nose bumps: These can be from skin dryness from excessively wiping your nose or a superficial bacterial infection. TopiCal bacitracin should help if vaseline does not

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I have little red bumps under my tongue on the base of the mouth. Allergies have been bad. Are these little bumps cause for concern?

I have little red bumps under my tongue on the base of the mouth. Allergies have been bad. Are these little bumps cause for concern?

Allergies: What are you taking for your " allergies that have been bad"? the bumps are probably from inflammation but you should see your doctor to rule out any infection.

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Just returned from a week in central america. Itchy forearms, buttocks, upper thighs, back. Small red bumps after scratching. Intermittent. Allergy?

Just returned from a week in central america. Itchy forearms, buttocks, upper thighs, back. Small red bumps after scratching. Intermittent. Allergy?

Many causes: One often think of tropical diseases and bug bites. However you should see your pediatrician to check this out. Sometimes it may just be from a viral infection.

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I have a couple painless red bumps on the roof of my mouth. I have allergies so I thought it could be that. But it's been over 24 hours now.

I have a couple painless red bumps on the roof of my mouth. I have allergies so I thought it could be that. But it's been over 24 hours now.

Consult your dentist: I would advise you to have the red bumps on the roof of the mouth examined by the dentist, to find out the source of the bumps to determine what treatment is necessary, if any.

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On augmentin875 forStrep (no result yet).Day2 no-itch rash w/tiny red bumps covers low back&stomach. No prior penicillin allergy. Is it allergy or other?

On augmentin875 forStrep (no result yet).Day2 no-itch rash w/tiny red bumps covers low back&stomach. No prior penicillin allergy. Is it allergy or other?

Mono rash?: The rash may indicate an allergic reaction to the antibiotic your are taking. You should bring this to your doctor's attention. Strep pharyngitis and infectious mononucleosis have similar presentations. Not uncommonly when mono is treated with a penicillin type medication the patient may develop a non-allergic rash which could be another explanation for the rash described in the question.

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All my life I've had these red bumps on my arms and sometimes a couple pimples. What could this be from I had someone tell me once its an allergy.

All my life I've had these red bumps on my arms and sometimes a couple pimples. What could this be from I had someone tell me once its an allergy.

Hyperkeratosis: Hard to tell without seeing this, but this may be follicular hyperkeratosis a condition where the hair follicles and pores get clogged with thick sloughing keratin. Please see a dermatologist to confirm, but you can start off by trying to moisturize the affected skin daily after showering with a gentle lotion like Cetaphil or aquaphor. This could also be eczema and may require some mild steroid.

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Red bumps on back of throat? Is it normal? Is because of allergies? N I also have red bumps all the way back of my tongue.

Red bumps on back of throat? Is it normal? Is because of allergies? N I also have red bumps all the way back of my tongue.

Possibly: Red bumps in the back of the throat or "cobblestoning" are lymphoid patches and is a normal response of the immune system probably to post nasal drip from the sinuses +/- allergies. Most likely the bumps on the back of your tongue are actually specialized taste buds and are normal. Most people never notice them.

Dr. John Chiu
2,641 Doctors shared insights

Skin Rash (Definition)

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