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Doctor insights on: Allergies Vs Irritants

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Patches of itchy, dry skin on face and eyelid, eyelid has now also swollen. As a whole, skin on face is irritant. possibly allergy or eczema?

Patches of itchy, dry skin on face and eyelid, eyelid has now also swollen. As a whole, skin on face is irritant. possibly allergy or eczema?

Get checked: Perhaps your doctor can confirm the eczema or perhaps a very bad allergy or infection. I would recommend a face to face encounter ...Read more

Dr. John Chiu
2,390 doctors shared insights

Allergies (Definition)

Essentially allergies occur when your immune system goes crazy and decides to has to fight against things it should be ignoring. The immune system of people without allergies simply ignores the pollen in the air or the dander on their cat while an allergic person's immune system creates cells to fight against the pollen or dander. The allergic reaction causes the ...Read more


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Can chronic post nasal drip no allergy b caused by an irritant, something that a person's nose is sensitive to? Ex. Car exhaust, air pollution, perf

Can chronic post nasal drip no allergy  b caused by an irritant, something that a person's nose is sensitive to?  Ex. Car exhaust, air pollution, perf

Yes: It is called vasomotor rhintis and a nasal spray can help. You should be tested by an allergist to rule out environmental allergies first. The two conditions can coexist. ...Read more

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What can cause chronic bronchitis with normal lung function test, no relation to allergy, infectious disease, tobacco and other chemical irritants?

What can cause chronic bronchitis with normal lung function test, no relation to allergy, infectious disease, tobacco and other chemical irritants?

50% of us: have asthma that does not make us go to the doctor on a given year. Mostly, I think this is mis-diagnosis of not asthma, but actually inflammation due to a viral illness which varies from days to over a month. Asthma meds (especially monteleukast) fix it. ...Read more

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Can the irritant in poison ivy travel through the air? Now that it is spring, I have been having a lot of issues with allergies because of all the pollen in the air. However, the other day i noticed after a sneezing fit that i was developing an itchy rash

The : The answer is yes, but only under circumstances like burning it. You may have come into contact with it thru other means like a pet or something else that came into contact with it, if it is really poison ivy. The rash should be seen by a medical person as it may not be poison ivy or any contact allergy. ...Read more

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How can I treat my allergies?

How can I treat my allergies?

Nasal sprays not OTC: For seasonal allergies, the most effective options are the steroid or antihistamine nasal sprays, available by prescription. Not only do they work the best, but they are technically local therapy as negligible amounts enter the bloodstream. The OTC nasal sprays can cause rebound symptoms, which the prescription versions do not. ...Read more

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What causes allergies?

What causes allergies?

Genes + environment: Noses run in families - if both parents have allergies the chance that their child will be allergic is 80%. If neither parent is allergic the child's risk is10%. Exposure to urban pollutants like diesel exhaust, cigarette smoke, & antibacterial hand cleansers upset the ecological balance between our immune system & beneficial microorganisms. With both factors present allergy is more likely. ...Read more

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What in the air could be triggering my allergy symptoms?

What in the air could be triggering my allergy symptoms?

Get tested: Consider seeing a trained allergist for evaluation. Skin testing takes a half hour & can reveal to what you're allergic. It might be the pollens of plants, mold spores, dust mites, or animal dander. Your allergist can help you decide which are relevant & devise a strategy that may include avoiding those allergens, taking medication or receiving allergy injections. Knowiedge is half the battle. ...Read more

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Why are fall allergies so bad?

Why are fall allergies so bad?

Ragweed & Mold: Allergy problems are often worse in the fall because of weed pollen such as ragweed. In addition, mold is worse in the fall because decaying plant material such as all summer's grass clipping and falling leaves. Ragweed is a potent allergen for those who are allergic to it and can cause fairly severe symptoms. The combo of weed pollen and mold is a double whammy. ...Read more

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What are allergies?

What are allergies?

See detail: Allergies are caused when a person makes an allergic antibody known as immunoglobulin e against a protein. This protein can be a food, pollen, mold, or medication. Allergic reactions can cause itching, swelling, redness in eyes, nasal passages, skin, GI tract, and in the lungs. ...Read more

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Are there any foods that toddlers can't eat or shouldn't eat because of the possibility of allergies?

No: For every study suggesting that a food should be delayed, there's another showing that there is no reason to delay it. At the most recent world allergy congress where all of these data worldwide were presented, the consensus is that there is no consensus; the only reliable recommendation that could be made is that food allergy is less likely to develop in infants who are breastfed for 6-9 months. ...Read more

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