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Doctor insights on: Urticaria Allergy

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Dr. John Chiu
2,660 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


Dr. Karen Han Dr. Han
3 doctors agreed:
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Is rosacea an allergic reaction?

Dr. Karen Han Dr. Han
3 doctors agreed:
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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Are allergic rhinitis and non-allergic rhinitis chronic?

Are allergic rhinitis and non-allergic rhinitis chronic?

Usually: Although many people with allergic rhinitis only have symptoms during the peak pollen seasons depending on what they are allergic to. ...Read more

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Citalopram allergy = hives?

Citalopram allergy = hives?

Very rare: According to fda data less than 1% of individuals develop urticaria (hives) or anaphylaxis with citalopram. Citalopram can be ruled out as the cause of any anaphylaxis, skin rash or hives you develop after you have been on it for over 1 year. ...Read more

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Allergic rhinitis course?

Allergic rhinitis course?

lifetime: It waxes and wanes with the seasons but returns annually forever. Claritin, (loratadine) zyrtec, and Allegra are your best choices during the day; Benadryl (diphenhydramine) at night;; Pseudoephedrine combos when it's really bad. ...Read more

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About allergic rhinitis?

About allergic rhinitis?

What?: This is inflammation of the tissues of the lining of the nasal passages induced by infiltration by immune modulating cells as a result of "allergic" reactions to a foreign chemical antigen. It results in tissue swelling, fluid production, itching, redness and general misery with congestion, coughing and other symptoms. ...Read more

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Is allergic rhinitis contagious?

Is allergic rhinitis contagious?

Allergy: Allergic rhinitis is not contagious. It is not an infectious disease, thus you cannot transmit or be infected by allergies. ...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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Which allergies cause urticaria?

Which allergies cause urticaria?

Any allergy can.: Urticaria (hives) is due to true allergy only 10% of the time. Any type of allergy can cause the skin rash. Foods & drugs are the most common. Other causes can be physical (direct pressure on the skin; cold; change in skin temperature) or underlying diseases like thyroid or auto-immune disorders, infections, cancer, etc. Urticaria that lasts up tp 4 weeks is considered acute. Longer is chronic. ...Read more

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What is a solar urticaria allergy?

What is a solar urticaria allergy?

Allergy to sun: Its a type of urticaria (hives) triggered by sun's uv rays. It is a rare condition and can cause severe discomfort to individuals with this condition when they go out in the sun. The exposed skin breaks out in red raised bumps with severe itching lasting for several hours. Sunblocks, antihistamines and limiting the time of exposure to sun can alleviate this condition. ...Read more

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Is non-allergic rhinitis chronic?

Is non-allergic rhinitis chronic?

Yes and no: It can be, but often times it is not. ...Read more

Dr. Al Hegab Dr. Hegab
2 doctors agreed:
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Are allergy vaccines helpful in allergic dermatitis?

Dr. Al Hegab Dr. Hegab
2 doctors agreed:
Are allergy vaccines helpful in allergic dermatitis?

Probably: Not as strongly effective as with airways allergies, need to be prescribed and monitored by an expert, an allergist, in selected patients, after controlling the environment and trial of other modalities, and control of symptoms, good luck ...Read more

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What causes crab allergies? Shrimp allergy?

What causes crab allergies? Shrimp allergy?

Muscle protein: The allergen in shrimp and crab is probably a common allergen called tropomyosin which is a muscle protein. ...Read more

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Can pollen allergies cause allergic contact chelitis?

Can pollen allergies cause allergic contact chelitis?

Doubtful : Certainly not by inhalation, but maybe if the lips came in contact with a lot of pollen. If your lips are swelling and you haven't been chewing on weed leaves, you should see your doctor ...Read more

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What seasonal allergy medscanitakesafelywithfluoxetine(prozac)?

What seasonal allergy medscanitakesafelywithfluoxetine(prozac)?

Allergy meds: Most second generation antihistamines can be taken with Prozac without interaction, such as allegra, zyrtec and claritin. Steroid and antihistamine nasal sprays are also safe and carry less sedating side effects. ...Read more

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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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Can hayfever pollen cause anaphylaxis?

Can hayfever pollen cause anaphylaxis?

Hay fever reactions?: While it is possible to see a variety of symptoms with seasonal allergies, such as sneezing, nasal congestion, eye redness, swelling and wheezing, a true anaphylactic reaction is rare. The severe, sudden onset of allergic symptoms associated with anaphylaxis might be seen as a reaction to an allergy shot to treat hay fever, but more commonly is seen with foods, medications, and insect stings, . ...Read more

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Is poison oak allergy genetic?

Is poison oak allergy genetic?

Poison oak: Some people appear to be immune, others become immune. However, you can gain or lose immunity, so to assume you can't get it if you never have before is foolish. People change as they age. I would never assume that i was immune at any time no matter what my past experience was. ...Read more

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Can sun urticaria cause anaphylaxis?

Can sun urticaria cause anaphylaxis?

Not usually: Solar urticaria is not usually associated with anaphylaxis but cold urticaria may. Perhaps extensive exposure can cause problem but most people would have had a sunburn before further complication develops. ...Read more

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Macular rash or urticaria?

Easy question: Macules are flat. Papules are raised above the surrounding level of the skin. Hives are itchy papules where each hives lasts less than 24 hours. Hives often last for days to weeks but an individual hive lasts less than a day, resolves without leaving a mark on the skin, and may be replaced with other hives. ...Read more

Dr. Julie Abbott
3 doctors shared insights

Hives (Definition)

A condition characterized by an outbreak of red bumps that appear quickly after exposure to certain allergens (foods, medications, or other substances). They can vary in size, are itchy, can burn, and can last for up to ...Read more