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Doctor insights on: I Keep Breaking Out In Hives What Is Causing This

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I keep breaking out in hives what is causing this?

I keep breaking out in hives  what is causing this?

Depends on duration: Arbitrarily, hives are defined as acute (<6 weeks) or chronic (>6 weeks). Acute hives are usually secondary to a new exposure, such as a change in diet, medication or personal care product. Chronic hives are much more difficult to figure out and the majority end up being idiopathic, although we are now discovering that approximately 40-50% of these cases are autoimmune. ...Read more

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Dr. Debra Rosenblatt
3 doctors shared insights

Hives (Definition)

Also known as urticaria, hives are an outbreak of red bumps or wheals that appear quickly after exposure to certain allergens (foods, medications, other substances). Hives vary in size, are itchy, can burn, and can last for up to ...Read more


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What if you have hives/urticaria, and you tried every medication like zyrtec, (cetirizine) zentec, and a two meds I had to pay for, but I'm still breaking out?

Xolair now approved: Xolair (omalizumab) is now approved for chronic hives. It has been used for many years for allergic asthma. While it is expensive, there are programs to help cover the cost. This monthyly injection can remarkably control hives. See a board certified allergist and ask about Xolair for hives. This is the first FDA approved treatment since antihistamines. ...Read more

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Off Zyrtec (cetirizine) bc of skin testing tomor but currently breaking out in hives due to my chronic urticaria. Even on my lids, can I take prednisone?

Off Zyrtec (cetirizine) bc of skin testing tomor but currently breaking out in hives due to my chronic urticaria. Even on my lids, can I take prednisone?

Yes: Just for a day or two if necessary to get skin test done. I am concerned that even if prednisone controlled your hives, you skin may still be too sensitive making it more likely to get a false positive reaction. I trust the skin testing is for other allergic conditions since it is rarely informative for chronic hives. ...Read more

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How long does urticaria last? I started breaking out all over 4 days ago, and it isn't getting better.

Depends: if it is directly related to something that you ate, or a medicine you took, it will go away after you stop the medicine in most cases, if otherwise usually it is due to a viral infection, again goes away within few days to weeks, if persists more than 6 weeks it becomes chronic and requires medical attention, at any rate if you are suffering whether acute or chronic,or have angioedema, see an MD ...Read more

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Can u tell me the difference between urticaria, dermatitis, and hives? which of them is caused by allergic reaction?

Urticaria is hives: Urticaria is derived from a Latin word meaning to burn. It is the same thing as hives. Hives lasting 6 weeks are not usually allergic in origin. Dermatitis means any kind of inflamed skin. Atopic dermatitis AKA eczema may be due to allergy. There are many other causes of dermatitis. ...Read more

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Hi I was diagnosed with have chronic urticaria, angiodema in 2011. Have had 30 anaphylaxis since I'm take antihistamines, break out in hives daily. Developing lipomas & cysts everywhere. ?

Hi I was diagnosed with have chronic urticaria,  angiodema in 2011. Have had 30 anaphylaxis since I'm take antihistamines, break out in hives daily. Developing lipomas & cysts everywhere. ?

Allergist: I recommend seeing an allergist/immunologist. Often high dose antihistamines and other meds are needed to get control. Also you need to be evaluated to find out if the episodes are the urticaria/angioedema or truly anaphylaxis. ...Read more

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What are the causes of cold urticaria? My 5yr old gets hives after eating cold foods. Severe hives the 1st time, but less hives each additional time.

Cold urticaria: There is no known cause of cold urticaria although there is a familial type. It is advisable to take an antihistamine before eating cold foods. I would recommend loratadine 2 tsp once daily to avoid this reaction on a regular basis. ...Read more

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Can chronic dehydration cause chronic hives (physical urticaria) since water directly affects histamine production in the blood? Rehydration cure it?

Can chronic dehydration cause chronic hives (physical urticaria) since water directly affects histamine production in the blood? Rehydration cure it?

No.: dehydration is not a standard cause of hives. Of course it certainly is easy enough to find out. Frankly, NEURODERMATITIS https://www.aad.org/dermatology-a-to-z/diseases-and-treatments/m---p/neurodermatitis/who-gets-causes is more common than association with dehydration. ...Read more

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Hives urticaria x 3 weeks. Antihistamines and prednisone are moderately effective only with consistent use. Would a skin biopsy help determine cause?

Hives urticaria x 3 weeks. Antihistamines and prednisone are moderately effective only with consistent use. Would a skin biopsy help determine cause?

No: A skin biopsy can help prove that these are hives, but usually cannot help to identify a trigger (unless you have underlying blood vessel disease called vasculitis). Prednisone should be avoided if possible because the hives can come back stronger when it is stopped. There are many potential triggers to discuss with a physician and many effective treatment options. Recommend Health Tap consult. ...Read more