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Doctor insights on: Itchy Skin Rash Allergy Onion

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Is allergy an inborn condition? I never had an unpleasant skin allergy (very itchy skin rashes) before until I turned 21.

Is allergy an inborn condition? I never had an unpleasant skin allergy (very itchy skin rashes) before until I turned 21.

Yes and no: While you may be born with a propensity toward developing allergies genetically, you actually have to be exposed to an allergen before you become allergic to it. It could happen the first time you are exposed or the hundredth. I, like you, did not start having hayfever symptoms until I was in my 20's. Yet every fall when ragweed is out, symptoms start unless I take my meds during that time of year ...Read more

Dr. John Chiu
2,638 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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Started 1 month ago itchy skin only when sleeping I have allergies and dry skin not taking medication and no rashes or bumps I train and work at a gym?

Started 1 month ago itchy skin only when sleeping I have allergies and dry skin not taking medication and no rashes or bumps I train and work at a gym?

Moisturizer: You may just have dry skin which can be helped by applying moisturizer on your skin within 3 mins after bathing and again about 12 hrs later +/- bathing. Avoid antibacterial and scented soap. If this still does not help, see a dermatologist. ...Read more

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Allergy/itchy skin rash swelling from Effexor (venlafaxine) xr. What's the best way to come off? I see my dr tomoz. Considering tapering off slow n going on prosac

Allergy/itchy skin rash swelling from Effexor (venlafaxine) xr. What's the best way to come off? I see my dr tomoz. Considering tapering off slow n going on prosac

See your doctor: It is best to see your doctor for advice in going off a medicine that may be causing a side effect and taking another. In addition medication may be recommended to relieve itching and rash. ...Read more

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Constant itchy skin all over with no visible rash or known allergy. Tried moisturizers, switching detergents and other remedies. Suggestions?

Constant itchy skin all over with no visible rash or known allergy. Tried moisturizers, switching detergents and other remedies. Suggestions?

Doctor can evaluate: A person with itchy skin all over, but no visible rash, can see his primary care doctor to see what the problem could be. If the skin is very dry, itching could result even without an obvious rash. Otherwise, the doctor might look for internal problems that can cause itching, such as drug side effects, liver disease, kidney disease, intestinal parasites, etc... ...Read more

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Cause of blister-like rash all from waist up, each blister approx 1mm in diameter. Very itchy! Skin coloring underneath is blotchy. Rxn, allergy?

Cause of blister-like rash all from waist up, each blister approx 1mm in diameter. Very itchy! Skin coloring underneath is blotchy. Rxn, allergy?

Blisters: There's no way to tell what this might be without taking a look at it. A dermatologist's eyeballs are the most important tools she/he has to work with, and in order to make the diagnosis, we have to see the patient. ...Read more

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Itchy skin turns into fast spreading rash like bumps when scratched. Both arms and right leg. Do have allergies & asthma. Not on meds for allergies.

Itchy skin turns into fast spreading rash like bumps when scratched. Both arms and right leg. Do have allergies & asthma. Not on meds for allergies.

Happy to help.: There are a couple of possibilities. First, dermatographism is a condition where scratching or marking the skin causes hives. Second, hives can arise without scratching as well. Antihistamines like Zyrtec/Allegra can help. If this persists, I'd recommend seeing an allergist who can allergy test you and help determine if other conditions are present. ...Read more

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Broke out in a itchy rash 3 times in 4 weeks. Itchy skin all over when it happens. Along with nerve pain. Muscle ache and sore throat. Allergies?

Broke out in a itchy rash 3 times in 4 weeks. Itchy skin all over when it happens. Along with nerve pain. Muscle ache and sore throat. Allergies?

Itchy rash: While itchy rashes can be from allergies, muscle aches, sore throat and pain are not commonly seen with allergies. Since diagnosing rashes is challenging without a picture, if a person takes a photo to show their doctor, it can help with the diagnosis. ...Read more

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Persistent, itchy rash for four days following allergy skin testing. Rash is at the site where the allergy testing was performed. Is this normal?

Persistent, itchy rash for four days following allergy skin testing. Rash is at the site where the allergy testing was performed. Is this normal?

Well if there is a: Rash where the allergy testing material was, then the rash is actually a positive reaction to the test product. If you have a generalized rash, it could be to the adhesive. See your allergist that performed the testing for absolute answers. Hope that helps ...Read more

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Daughter has skin colored bumpy itchy rash spreading on body tried betaderm & aquaphor. Not working. Allergy meds don't help either. What could it be?

Daughter has skin colored bumpy itchy rash spreading on body tried betaderm & aquaphor. Not working. Allergy meds don't help either. What could it be?

Pityriasis?: There are several inflammatory rashes that appear frequently in children and a proper diagnosis is helpful in not only giving the right treatment but avoiding unnecessary treatment. In the derm word, a picture is indeed better than a thousand word. The rash could be eczema, requiring steroid cream.
For the other common rash, see link. ...Read more

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Which stds causes itchy skin hive like rash all over body?

Which stds causes itchy skin hive like rash all over body?

Probably no STD: Syphilis can cause a body-wide rash, but not hive-like and usually not itchy. If you think you're at risk for STDs, get tested. But an STD is not a likely cause of this rash. Most rashes like this are due to drug allergy -- which could include an STD drug if you're on treatment. In that case, contact the doctor treating you. Good luck! ...Read more

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White blotches on palms. Itchy skin rash all over. White tongue. Itchy pubic area Had unprotected oral sex. Itchy bumps on cheeks and chin. Help plz?

White blotches on palms. Itchy skin rash all over. White tongue. Itchy pubic area Had unprotected oral sex. Itchy bumps on cheeks and chin. Help plz?

Probably unrelated: You may possibly have contracted scabies from the contact but there are also other potential causes unrelated to the sexual contact. See a doctor if this has been presented for more than 3 days or been getting worse. ...Read more

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Itchy skin rash all over body (except for face, neck, palms and soles) for 14 days. NO fever, NO flu-like symptons, NO lymph node. Can it be HIV ARS?

Itchy skin rash all over body (except for face, neck, palms and soles) for 14 days. NO fever, NO flu-like symptons, NO lymph node. Can it be HIV ARS?

Rash: It sounds more likely that it is an allergic reaction to something. The fact that it is not on the palms and soles of your feet makes other bad things less likely. Skin rashes are hard to diagnose and the diagnosis depends on where the rash is, the color, whether there are blotches, raised bumps and many other things. You can buy benadryl (diphenhydramine) in the pharmacy for itching and if it persists see DR. ...Read more

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What can I do for an itchy skin rash I believe I got from carafate? Do I need medical attention? If so how soon?

What can I do for an itchy skin rash I believe I got from carafate? Do I need medical attention? If so how soon?

Soon: And sooner if you have any breathing difficulty, feeling dizzy, or having eyelids/lips swelling. Meanwhile, stop the carafate or any drug you believe is causing the problem, take Benadryl and call your doctor, best wishes ...Read more

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Tonsilits and itchy skin rash?

Tonsilits and itchy skin rash?

Scarlet Fever?: Fever? Tonsillitis can be from Group A Strep bacteria, which if severe can cause a rash (usually not itchy though), in association with high fever and must be treated with antibiotics. See a doctor as soon as possible. IF NO FEVER, you may have Fifth Disease -- a benign rash from a virus which also causes your tonsillitis. If you are on medications, could be allergy. Lots of causes, see Dr. ...Read more

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I was taking Thyronorm 50mcg for 2 years, last month switched to Levothyroxine 50mcg. After 4 weeks, I developed itchy skin rashes all over body. Why?

I was taking Thyronorm 50mcg for 2 years, last month switched to Levothyroxine 50mcg. After 4 weeks, I developed itchy skin rashes all over body. Why?

Allergic reaction to: Stick with your Brand name product! Most likely generic equivalent has inactive ingredient which caused you allergic reaction. Talk to your pharmacist. Take antihistamine as well. ...Read more

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Can red wine aggravate itchy skin rash?

Can red wine aggravate itchy skin rash?

Yes: Alcohol increases the blood flow (thus the temperature) to the skin and red wine has been found to contain a histamine-releasing factor. Both conditions tend to make itching worse. ...Read more

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Allergic to Effexor (venlafaxine) xr. Been taking it for half a yr drs didn't know why I had rashes/itchy skin swollen etc. :- (been taking for half a year?

Acquired allergies: Most reactions to medications including hives and dermal hypersensitivity reactions are acquired and occur after you have taken the medication for a while. Once you are allergic, if you stop and then take the medication again, the allergic reaction can happen more quickly. ...Read more

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Have a red itchy skin rash on belly and arms?

Have a red itchy skin rash on belly and arms?

Rash: Rashes are difficult to diagnose without being seen. Is it flat, pebbly, blistery? How long present? How large an area involved? Any contact with poison ivy personally or a pet? Any exposure to ticks? Any exposure to measles/chickenpox/etc? See pcp for evaluation & treatment of rash. ...Read more

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Why had itchy skin rashes at age of 50.

Why had itchy skin rashes at age of 50.

Itchy rash: At 50, your skin may be more dry than when you were younger, use moisturizers daily and if the symptoms continue, see your doctor. ...Read more

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I am nervous and shaky and have an itchy skin rash that has little blisters. Headache and general malais. What could this be?

I am nervous and shaky and have an itchy skin rash that has little blisters. Headache and general malais. What could this be?

Sx's: 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. ...Read more

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Itchy skin rash on back of thighs for over a year using steriod cream but comes back after a week each time. Also using dermol 500 in shower?

Itchy skin rash on back of thighs for over a year using steriod cream but comes back after a week each time. Also using dermol 500 in shower?

Agree and...: You don't give us much information but is it small sandpaper "goosebumps"? If so, may be keratosis pilaris which is famous for coming back again & again. This rash is caused by keratin plugs in hair follicles and is worse in winter & in those with dry skin, eczema. When you see the doctor, they would treat it with retin a, or cream with vitamin d, urea, lactic acid, glycolic acid, salicylic acid. ...Read more

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I have itchy skin on my thighs during physical education class, especially when I am sweaty. Is this skin rash?

I have itchy skin on my thighs during physical education class, especially when I am sweaty. Is this skin rash?

Fungus?: It sounds like a fungal infection, commonly known as jock itch. Use an antifungal spray or powder, such as gold bond or desonex and see if it helps. If not, see your physician. ...Read more

Dr. John Chiu
2,673 Doctors shared insights

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


Dr. Cornelia Franz
1,059 Doctors shared insights

Rash (Definition)

A rash is a change to skin condition which can affect color, appearance, or texture. It may or may not ...Read more