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Doctor insights on: Contact Hives

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I have contact allergies (instant hives) that may or may be caused partly by latex. Is there a test for latex algy & is it safe?

I have contact allergies (instant hives) that may or may be caused partly by latex. Is there a test for latex algy & is it safe?

Yes: Latex allergy may either be allergy antibody mediated or a contact dermamtitis. There are test that supplement the doc history and physical to arrive at the correct diagnosis. ...Read more

Dr. Katharine Cox
3 Doctors shared insights

Hives (Definition)

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


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Are hives caused by contact substances or internal substances such as food?

Are hives caused by contact substances or internal substances such as food?

Can be either: Hives can be caused by food, contact with substances, stress, cold, exercise, etc. They are simply a reaction to something and not specific for any one cause. If there is any shortness of breath, tightness in the chest or chest pain seek immediate medical evaluation. ...Read more

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Can hives be a symptom of contact urticaria?

Can hives be a symptom of contact urticaria?

Hives: Urticaria is the medical term for hives. Contact urticaria happens when you come into contact with something your skin is allergic to and you develop hives from it. The best thing to do is avoid contact with that thing your skin is allergic to. ...Read more

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How long does it take for hives to appear after an allergen contact?

How long does it take for hives to appear after an allergen contact?

Within minutes: With contact hives, such as after a dog lick, they appear with minutes. After eating food to which you are allergic your lips and mouth become itchy almost immediately and the hives will usually appear within minutes and over 90% of the time within 30 minutes. ...Read more

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I seem to break out in hives whenever I come in contact with hot water what is this?

Thermal urticaria: It looks like a type of physical urticaria or more specifically heat induced urticaria. You might try to take otc antihistamine daily. ...Read more

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Hi I am allergic to pet dander and when in contact with it I get hives so how long will my hives last?

Hi I am allergic to pet dander and when in contact with it I get hives so how long will my hives last?

Hives: Depends on how long you are exposed to the dander. If it gets on your clothes, they need to be changed or washed to reduce skin exposure. Hives typically last less than 24 hours once the allergic trigger is removed but this can be sped up if oral antihistamines are used. ...Read more

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Took penicillin for 5 days; now have "contact dermatitis"; what can we do now for the hives all over the body?

Not contact: This is not a contact reaction but a systemic reaction to penicillin if the rash is flat. If it is raised, then they are hives. You will likely get over it in a week or so. In the meanwhile try some antihistamine 3 to 4 times a day. If the itching is unbearable, check with your doctor who may prescribe a short course of Prednisone for you. ...Read more

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What happens if I have an allergy to cats would I srart breaking out into hives 8 hours after being in contact with cat?

What happens if I have an allergy to cats would I srart breaking out into hives 8 hours after being in contact with cat?

Unusual: Most reactions would occur within minutes but for some people there is a delayed phase of allergic reaction which may occur from 2-6 hrs after the exposure but only if you have already had the immediate reaction. ...Read more

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My palms itch profusely after contact with a cold or even cool surface. No hives or rash develop. Rest of body experiences no such reaction to cold.

My palms itch profusely after contact with a cold or even cool surface. No hives or rash develop. Rest of body experiences no such reaction to cold.

Cold Urticaria: Cold urticaria (ur-tih-KAR-e-uh) is an allergy to cold temperatures. With cold urticaria, exposure to cold temperatures causes redness, itching, swelling and hives on the skin that has been in contact with the cold. As much as possible, people with cold urticaria should avoid exposure to cold air and cold water. You can try antihistamines. ...Read more

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Hiv anti body test 17 weeks after sexual contact, Result of test was negative, no recent exposes. But Suffering dry patches and hives. Should I retest?

Hiv anti body test 17 weeks after sexual contact, Result of test was negative, no recent exposes. But Suffering dry patches and hives. Should I retest?

No: This isn't HIV. This is not how it would announce itself if you had contracted it. Focus on your other health concerns and try to find the cause of your skin troubles, perhaps with a specialist's help. ...Read more

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3 yr old came into contact with poison oak Saturay and I didn't know until today when I saw she had patchy hives all over her body. What do I do?

3 yr old came into contact with poison oak Saturay and I didn't know until today when I saw she had patchy hives all over her body. What do I do?

Unlikely poison oak: Poison oak will trigger blister formation in lines or clusters where it contacted the skin. It rarely if ever triggers hives. Cool compresses can reduce itching and Benadryl can sometime slow the spread of hives. If this continues she should see her doc. ...Read more

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Is there any need for further testing? I am one of the lucky few to have a true milk allergy diagnosed by allergist due to history of rapid onset breathing trouble with accidental ingestion. I also react to contact with milk on the skin with hives.,

Is there any need for further testing? I am one of the lucky few to have a true milk allergy diagnosed by allergist due to history of rapid onset breathing trouble with accidental ingestion. I also react to contact with milk on the skin with hives.,

Not now: Since milk allergy may subside with time, retesting in a few years may be helpful to guide you on trying milk again. Since up to 75% of milk-allergic people can consume cooked milk (in baked products etc), what has your experience been with baked goods? There is some evidence that if baked dairy products can be tolerated, eating them regularly may lead to tolerance of the raw milk later. ...Read more

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If I have contact with latex, and I start coughing or get itchiness in my throat along with localized hives should I use epi or Benadryl (diphenhydramine)?

If I have contact with latex, and I start coughing or get itchiness in my throat along with localized hives should I use epi or Benadryl (diphenhydramine)?

EPI: If no Dr is immediately available, use the epi. What are your previous reactions? This will very likely be the same. As for Benadryl, (diphenhydramine) you can do much better. Cetirizine [Zyrtec] is far better, also safer. ...Read more

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Can baby oil gel used during intercourse cause contact dermatitis near vagina? *I have sensitive skin & breaks out in hives often.

Can baby oil gel used during intercourse cause contact dermatitis near vagina? *I have sensitive skin & breaks out in hives often.

Yes: Yes you can be allergic to one of the ingredients in baby oil gel although this is not common. You may also be allergic to semen - a more likely cause for your hives after sexual intercourse. And yes, you should consult an allergist to help you solve this problem. ...Read more

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Went to ER with hives on both wrists and forearms and what felt like a lump in my throat. Would the area of the hives suggest it was a contact allergy?

Perhaps, but: Whenever I've been to the ER for similar hives, the doctors tell me that anyone who IDs the exact cause is fooling themselves. The localization can be misleading sometimes, not always, but... You might know if you did anything unusual with your arms just before and if you do - try to avoid that w/o protection. But, it might remain a mystery. Preventive daily Benadryl (diphenhydramine) may help. Ask your doctor. ...Read more

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What's cold contact urticaria?

What's cold contact urticaria?

Hives with cold skin: People who have cold induced urticaria release histamine in their skin when it cools. People react at different temperatures. If you place an ice cube on your skin you will develop a hive at the site (see photo). Keep warm, cover skin in cold air, take antihistamines. Swimming in cold water and cold drinks can be fatal. See an allergist for proper diagnosis and treatment. ...Read more

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What's cold contact urticaria cure?

What's cold contact urticaria cure?

Heat, antihistamine: First avoid temperatures colder than the temperature which causes your hives. Second cover as much of your skin as possible. Third, because the hives are due to the release of histamine in your skin when it cools, antihistamines will minimize or control the symptoms. See an allergist. Avoid swimming in cold water and drinking cold drinks to prevent potentially life threatening reactions. ...Read more

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What is the definition or description of: contact urticaria?

What is the definition or description of: contact urticaria?

Contact urticaria: Contact urticaria is a syndrome in which hives are caused by a variety of compounds, such as foods, preservatives, fragrances, plant and animal products, and metals. The etiology can both be immunologic requiring prior exposure to the the allergen or non-immunologic. Patients can present with localized hives, generalized hives, or have symptoms associated with anaphylaxis. ...Read more

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Why would a 25 yr old without any other health problems suddenly develop cold contact urticaria?

Why would a 25 yr old without any other health problems suddenly develop cold contact urticaria?

Good question: No one knows why but it is suspected to be an autoimmune problem. The good news is that it may subside in a few years. Be sure you don't jump into cold water until the problem can be evaluated by an allergist. ...Read more

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I have Aquagenic urticaria. Is there any medicine to control it. Skin is painful n red after contacting with water. But skin don't itch?

I have Aquagenic urticaria. Is there any medicine to control it. Skin is painful n red after contacting with water. But skin don't itch?

Difficult control: It is very difficult to control this disease and no one has known the actual cause. Some try the regular treatments for urticaria with antihistamines like hydroxyzine, cyproheptadine, and Benadryl (diphenhydramine). Other treatments are more difficult and would need direct care or observations and not enough room here to go into all of the types. See MD-health. Com for further information. I hope this helped. ...Read more

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What are hives?

Itchy, red, raised.: Hives are itchy, red, raised lesions on the skin and they usually happen after contact with or ingestion of something you're allergic to. Try some benadryl, (diphenhydramine) cold packs, and see your doctor if they get worse! ...Read more

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What are hives?

Skin rash: That is characteristically raised, evanscent, and itchy. ...Read more

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What causes hives?

What causes hives?

Many causes: There are many causes of hives and these include infections, medications, bee/wasp stings, food allergies, environmental allergies, stress, cold temperatures, and exercise amongst other rarer causes. Oftentimes, hives are idiopathic, meaning there is no known cause.

For further evaluation and management, consultation with a board-certified allergist is recommended for evaluation and management. ...Read more

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What causes hives?

Usually allergic rxn: Usually it is caused by an allergic reaction, like contacting something you're allergic to touch. Consult your physician. Wishing you the best. ...Read more

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Are hives chronic?

Are hives chronic?

Depends: Hives can be acute and last less than 1 day- 1 week or they can be chronic lasting greater than 6 weeks. Acute hives often have a trigger- such as food, medication, bug bite, venom sting, or pet allergy. However, they can also coincide with infections and the cause may not be easy to identify. Hives that are chronic >6 weeks require evaluation by an allergist and often have no known cause. ...Read more