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Doctor insights on: Allergic Reaction

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Dr. John Chiu
1,033 doctors shared insights

Allergic Reaction (Overview)

Sensitivities to substances, called allergens, that come into contact with the skin, nose, eyes, respiratory tract, and gastrointestinal tract. They can be inhaled into the lungs, swallowed, or injected.


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Fluconazole allergic reaction?

Fluconazole allergic reaction?

Skin usually: Adverse reactions to Fluconazole are uncommon but can manifest in various ways, but usually involve skin reactions including mucus membranes like oral ulcers. Other organ systems that can be affected include nervous, heart, muscle, eye and kidney. I just saw a young lady with second episode of severe mouth and vaginal symptoms after Diflucan (fluconazole) dose. It happens. ...Read more

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Dr. John Chiu
1,033 doctors shared insights

Allergic Reaction (Overview)

Sensitivities to substances, called allergens, that come into contact with the skin, nose, eyes, respiratory tract, and gastrointestinal tract. They can be inhaled into the lungs, swallowed, or injected.


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Can juvederm reaction cause an allergic reaction?

Can juvederm reaction cause an allergic reaction?

Yes: It would be an extremely rare instance since the main component is hyaluronic acid which is present as a protein in your cells. However there is a rare instance that you are allergic. There is no allergy testing required for HA drugs ...Read more

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Allergic reaction (Tip)

For known wasp sting allergy its best to keep epi-pen or ana- guard sting kit with you all the time. ...See more

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Allergic reaction to corned beef?

Allergic reaction to corned beef?

Beef allergy: Are you allergic to beef or is it simply something in the aging process of the corned beef that you reacted to? Your allergist can test you. ...Read more

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Are metabollic food reactions allergic reactions?

Are metabollic food reactions allergic reactions?

No: Food allergic reactions are mediated by the ige allergic antibody. Reactions mediated by metabolic factors occur without an ige antibody, so an allergy skin or blood ige test is not helpful. ...Read more

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Is rosacea an allergic reaction?

Is rosacea an allergic reaction?

No: Rosacea is an inherited condition characterized by extra sensitive skin, flushing, dilated blood vessels, inflammatory bumps that mimic acne, and enlarging bumpy nose. Common triggers are chronic sun exposure, caffeine, alcohol, and increase in core temperature, etc...The inflammatory reaction of rosacea is not histamine driven as it is in an allergic reaction. ...Read more

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The scabies cause allergic reaction?

The scabies cause allergic reaction?

Yes: In fact the intense itching is mostly from an allergic reaction to the mite droppings. ...Read more

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Allergic reaction to all cephalosporins possible?

Allergic reaction to all cephalosporins possible?

Yes: Allergy to the entire class of antibiotics called cephalosporins is indeed possible. That allergy would be the common part of the molecule shared by all cephalosporins and penicillins, the beta-lactam ring. ...Read more

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Is angioedema classified as an allergic reaction or an adverse reaction?

Is angioedema classified as an allergic reaction or an adverse reaction?

Swelling: Angioedema is a medical term for swelling of the deep layers of the skin. Angioedema can be due to a number of different reasons and is not alway due to an allergy. In some cases, angioedema can be life threatening. An evaluation by an allergist can help determine the cause of angioedema. ...Read more

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Are all anaphylaxis reaction allergy related?

Are all anaphylaxis reaction allergy related?

No answer: The question makes no sense. Try again with a specific question including the details. ...Read more

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Can Benadryl (diphenhydramine) help a swelling and hive reaction (itching) allergic reaction to penicillin?

Can Benadryl (diphenhydramine) help a swelling and hive reaction (itching) allergic reaction to penicillin?

Depends: on the reaction, if just hives and itching, yes benadryl (diphenhydramine) can control it in the right dosage, after discontinuing the offending drug, but if more severe symptoms/swelling you need medical attention with the possible addition of epinephrine and probably steroids, ...Read more

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Can immunizations cause allergic reactions?

Can immunizations cause allergic reactions?

Sure: Yes, any medication of vacation can cause an allergic reaction. Talk to your physician about the symptoms you are concerned about for an evaluation. ...Read more

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What is an allergic reaction?

What is an allergic reaction?

An altered reaction: The roots of "allergy" are from greek "allos" (different) and "ergos" (action). So, an allergic reaction is a "different" (from normal) reaction. The reaction occurs to an allergen. An allergen can be a pollen (ragweed), food (peanut), animal (dust mite or bee venom), or other foreign substances. Symptoms occur due to histamine and other chemicals and cause sneezing, runny nose, etc. ...Read more

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Allergic reaction to insect bite means hives or what else?

Allergic reaction to insect bite means hives or what else?

Allergy to insect bi: Most of the allergies to insect bites caue local reaction and itching.But some people have severe reaction to insect bites and stings especially bee stings.This is a life threatening allergic reaction and is called anaphylaxis, this can cause breathing difficulty and is an emergency.Need to be treated with Epipen (epinephrine) injection and emergency treatment. ...Read more

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What's an allergic reaction to carpeting?

What's an allergic reaction to carpeting?

Carpets: Carpets are a traditional source of allergy as they harbor dust mites and mold spores. If the carpet got wet in the past more mold spores will be harbored there. The carpet also stores pet dander. A newer carpet also frquently emits chemicals that are irritants. ...Read more

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What are common wasp sting allergic reactions?

What are common wasp sting allergic reactions?

Local: Most sting reactions cause local symptoms: swelling, itchiness, redness. Very rarely can one see a patient develop systemic allergic reaction. ...Read more

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Are allergic reactions hereditary?

Are allergic reactions hereditary?

Yes and No: Allergies to specific triggers, like peanuts, shrimp, dust mites, etc., are not inherited from one generation to the next. However, the general state of "being allergic" (atopy) can be hereditary, so children of parents with asthma or seasonal allergies may have increased risk to develop those or other allergic conditions. See an allergist for more information. ...Read more

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Pollen allergic reaction, what to do?

Keep pollens away: Eliminate exposure by using facial mask, high efficient hepa filter and vacuum your carpet more often. Use AC at home and when you drive in bad allergy season. Besides, there are OTC oral antihistamines, decongestants, and inhalers available. If not improve, talk to your doctor or allergy specialist for more potent treatments including nasal antihistamines, steroid inhaler and immuno-therapy. ...Read more

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Allergic reaction to chickenpox vaccine possible?

Allergic reaction to chickenpox vaccine possible?

Yes,it's mild: A eaction to chickenpox vaccine would occur about 5 days after the shot. The patient may get a little chicknpox-like rash around the site of the shot. It is not common, and not serious. The disease if your child is not vaccinate would cause much more uncomfortable symptoms than the possible side effects of the vaccine. So give your child the chickenpox vaccine! ...Read more

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Armpit stings, allergic reaction or not?

Armpit stings, allergic reaction or not?

Not always: I am answering the question that i often get about armpit stinging with deodorant, this can be immunoglobulin e mediated allergy or cell mediated allergy (delayed type hypersensitivity, or type IV sensitivity) or merely irritation. A patch test can determine delayed type hypersensitivity, ige allergy is less commonly tested, irritation is diagnosed by the lack of other mechanisms. ...Read more

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Dr. John Chiu
2,586 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