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Doctor insights on: Solar Urticaria Allergy

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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

Dr. John Chiu
2,638 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


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Do solar urticaria allergies go away?

Do solar urticaria allergies go away?

Yes: But it can also persist and may need to be treated with oral antihistamines and topical steroids. ...Read more

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How do you manage a solar urticaria allergy?

How do you manage a solar urticaria allergy?

Betacarotene: In addition to sunblocks, and antihistamines to decrease symptoms, betacarotene 1-8 pills a day may decrease solar urticiaria. At higher doses the skin will turn an orange color like carrots, but this is temporary. ...Read more

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What are the symptoms of a solar urticaria allergy?

Itchy hives: Upon exposure to sun's rays the exposed skin breaks out in red raised bumps (hives) with severe itching lasting for several hours. ...Read more

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Is solar urticaria dangerous?

Is solar urticaria dangerous?

Usually not: Solar urticaria normally results in hives after sun exposure that is often accompanied with itching, burning, and rarely pain. Severe attacks are RARE but can manifest with malaise, light-headedness, nausea, bronchospasm, and/or syncope. If you have solar urticaria, I recommend taking an oral antihistamine about an hour before going outdoors and protecting your skin when outside. ...Read more

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Solar urticaria-- what is treatment?

Solar urticaia Rx.: Sun avoidance, good sun screens, and antistamines are primary treatments. Solar urticaria is a form of physical urticaria (hives) and can be very annoying. There are some medications that can cause a person have a rash on exposure to sun, but they are usually not urticarial in nature. ...Read more

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Are there any new treatments or drugs that can help with solar urticaria?

Solar Urticaria: A very frustrating disorder. Sunscreen and adequate coverage of the skin, oral non-sedating antihistamines once to twice daily. Consider buying swimwear including hats, tops, suits and bottoms that are impregnated with upf protection since that can also help. It will burn out but we don't know when. ...Read more

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Can you explain what is solar urticaria?

Can you explain what is solar urticaria?

Reaction to sun.: Swelling and itiching that does not stay localized with negative blood tests. The body reacts to exposure to sunlight. This is distinguished from other conditions which cause sun sensitivity such as lupus. Treatment is antihistamines, sunscreen, and limiting sun exposure.Betacarotene orally can be useful in minimizing symptoms. ...Read more

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How common is solar urticaria and what are the risk factors for developing this?

How common is solar urticaria and what are the risk factors for developing this?

Rare condition: Solar urticaria is a rare cause of photosensitive dermatoses. Risk factors are a family history of the condition, having dermatitis, use of perfumes or other chemicals which may trigger the condition when there is exposure to sunlight, and use of antibiotics or other medications which may trigger the condition. I am available to consult with you further via Healthtap if you desire. ...Read more

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What causes cold urticaria and solar urticaria in the same patient? Could it be an hhv6 infection/encephalitis she had at 18 months?

Urticaria: It's not known why these two conditions occur. They may be inherited or caused by a virus. In the case of solar urticaria, there is also activation of some antigen in the skin by ultraviolet light which then causes an ige reaction. Ige is an antibody responsible for immediate hypersensitivity reactions of which urticaria is one. The mechanisms and causes of these are not entirely worked out yet. ...Read more

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Is there a way to get tested for solar allergy? I get hives everytime I'm out in the sun.

Is there a way to get tested for solar allergy? I get hives everytime I'm out in the sun.

See allergist: There are different types of solar allergy and your best bet would be consulting an allergist. ...Read more

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What allergies are the most likely causes of urticaria?

What allergies are the most likely causes of urticaria?

Food allergy: Urticaria is a common presentation of food allergy. The common food allergens r peanut, tree nuts, milk, egg white, wheat, seafood, etc. But any food can cause allergy. Urticaria can also happen w drug allergy, sometimes pollen/animal allergy, but not as often. Sometime urticaria can happen w no obvious reason. See an allergist if it bothers u often, or u suspect it is due to an allergy. ...Read more

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Can you explain the relationship between allergies and urticaria?

Can you explain the relationship between allergies and urticaria?

Allergy & Hives: Urticaria, or hives, are caused by release of histamine in the skin; this leads to itching and a raised rash. Histamine is also released in allergic reactions; in the nose it causes drainage & sneezing while in the lungs it causes wheezing & tightness. Hives can be due to an allergic response to a food or medicine but they can also be a contact response or due to direct histamine activation. ...Read more

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Is dermatografism and cholinergic urticaria an allergy condition?

Is dermatografism and cholinergic urticaria an allergy condition?

Not really: These conditions can overlap or can be separate entities that involve hives. The immune cells that release histamine and other mediators that promote hives are triggered by non-allergic triggers (mechanical disruption of the skin or by heat, respectively). Thus, it is allergy in the sense that experts in understanding this part of the immune system treat these conditions, but no allergic antibody ...Read more

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Hi, can I infect my partner if I have the allergy (cold Urticaria)?

Hi, can I infect my partner if I have the allergy (cold Urticaria)?

Hives-urticaria: That is a localized wheal and hive response of your skin. This cannot be transmitted to your partner, as it is not an infectious disease. You should see an MD to work this up and diagnose your exact condition. There are many treatment options available to help you feel better. ...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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How can I treat (cure) heat allergies (cholinergic urticaria)?

How can I treat (cure) heat allergies (cholinergic urticaria)?

Antihistamines: Cholinergic urticaria (hives) is caused by increase in core body temperature with triggers like exercise with sweating, strong emotions, and bathing in hot water. Identify and avoid known triggers, avoid bathing in hot water and performing strenuous exercise during hot weather. Can take non-sedating antihistamines 1-2 times daily. Allergist can perform methacholine challenge in office to confirm. ...Read more

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How is chronic urticaria of children resolved? With allergy testing?

How is chronic urticaria of children resolved? With allergy testing?

See below: Allergy testing may hold an answer. However, with chronic urticaria, less than 5% of the time is a cause found. ...Read more

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If my urticaria appears on the scalp and face, can it be presumed that I'm allergic to a specific food group? My allergy can appear any day, any hour.

If my urticaria appears on the scalp and face, can it be presumed that I'm allergic to a specific food group? My allergy can appear any day, any hour.

Unrelated: If you have chronic urticaria, most probably it is spontaneous, no foods will confine it to just the scalp and face. Kindly see a dermatologist for better management, best wishes ...Read more

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Dermatological, maybe allergy problem (urticaria) - cannot tell for sure. What should I do?

Dermatological, maybe allergy problem (urticaria) - cannot tell for sure. What should I do?

Take antihistamines: If your urticaria has an obvious cause, like peanuts or shrimp, or if you are experiencing lip swelling, tongue swelling, trouble breathing or light-headedness you should see an allergist. Otherwise, try taking an otc antihistamine like Cetirizine or fexofenadine once or twice a day. The urticaria will often resolve on its own over time. If this doesn't work, see a doc. ...Read more

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What sort of test I have to get done to find out the cause of urticaria allergy that I have?

What sort of test I have to get done to find out the cause of urticaria allergy that I have?

Skin and blood tests: To evaluate urticaria (hives) that come more than one time, a doctor can first examine and talk with the patient. Then blood tests can be done, to check for abnormalities in the blood, as well as for antibodies to foods or other possible allergens causing the urticaria. At an allergist's office, skin tests can be done to look for reactions to possible allergens causing the hives. ...Read more

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Urticaria with diaherria. After eating the same food sometimes allergy occurred sometimes it's not.

Urticaria with diaherria. After eating the same food sometimes allergy occurred sometimes it's not.

Avoid that food: Now you can see your doctor and have allergy testing. Otherwise avoid the food that irritates you ...Read more

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Do people with allergies such as rhinitis and urticaria have higher chance of tattoo ink allergies? How do I get tested for tattoo allergies?

Do people with allergies such as rhinitis and urticaria have higher chance of tattoo ink allergies? How do I get tested for tattoo allergies?

Tattoo: According to the European Annal of Allergy and Clinical Immunology in a 2007 study there was not an association with increased allergic response (contact dermatitis) in people with allergic rhinitis or urticaria. Actually two diffferent mechanisms rhnitis is IGE mediated and local reaction is through local cell mediated reaction. ...Read more

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I have borderline milk and maize allergy results, yet why are my reactions so extreme if b'line? Awful daily urticaria, facial angiodema, eczema.

I have borderline milk and maize allergy results, yet why are my reactions so extreme if b'line? Awful daily urticaria, facial angiodema, eczema.

History is more imp: Believe you are referring to rast testing, and you are describing urticaria/angioedema, which might be due to food allergy, symptom scores, if directly related to ingestion of milk/maize, are more reliable in establishing a diagnosis despite border line rast, however most of the time no specific cause could be found, at any rate you need to be evaluated by an allergist/immunologist, good luck. ...Read more

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Can I use Clobetasol ointment on my face? I've been told I have eczema or chronic spontaneous urticaria. No allergies, just happens for no reason

Can I use Clobetasol ointment on my face? I've been told I have eczema or chronic spontaneous urticaria. No allergies, just happens for no reason

NO NO NO: See a dermatologist. Eczema and urticaria are completely different. You left out any clues to the true diagnosis. Neither eczema nor chronic urticaria are allergies. The treatments are completely different. Do not use clobetasol on your face. It may cause perioral dermatitis. You will be sorry if it does. It is rarely associated with cataracts and glaucoma if used on the face. ...Read more

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Is black tattoo ink hypoallergenic? Are allergic rxns to this rare for those with history of allergies? (AR, chronic urticaria....)

Is black tattoo ink hypoallergenic? Are allergic rxns to this rare for those with history of allergies? (AR, chronic urticaria....)

Tattoo inks are safe: But some people still react to them. "hypoallergenic" isn't a guarantee against allergy. Anyone can have an allergic reaction to nearly any substance, even after years of exposure. In general, tattoo ink allergic reactions are fairly rare. Only use a reputable artist. If you're concerned, ask for a test spot in an inconspicuous area 1-2 weeks before a full tattoo as a precautionary measure. ...Read more

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Does cholinergic urticaria increase risk of anaphylaxis from oral allergy syndrome and exercise (with and without ingesting OAS causing fruits)?

Does cholinergic urticaria increase risk of anaphylaxis from oral allergy syndrome and exercise (with and without ingesting OAS causing fruits)?

Different mechanisms: Cholinergic urticaria is different from oral allergy syndrome or exercise induced anaphylaxis. At any rate, if anybody has any of these conditions, using antihistamines and keeping an Epipen (epinephrine) handy is a wise thing to do. Have an evaluation by an allergist for better control, best wishes ...Read more

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I have controlled hypothyroidism by taking levothyroxine. However I have chronic allergies producing urticaria and rhinorhea. Which antihistamine best?

Benadryl (diphenhydramine) would be an: Effective antihistamine. Ask your allergist if adding an antileukotriene and a steroid would also help. Take care! ...Read more

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Should I be worried about the kinds of fruits and vegetables I eat because I have hay fever, oral allergy syndrome, and cholinergic urticaria?

Easy does it: Hay fever And cholinergic urticaria aren't about food. Your oral allergy syndrome is a minor nuisance. If a particular food sets it off, avoid it but unnecessary restrictions will complicate your life and make it hard to be a good guest. ...Read more

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42, no food allergies, but, I am scared to eat peanuts or fish. Does my celiac disease and my chronic urticaria increase my allergy chances to these?

42, no food allergies, but, I am scared to eat peanuts or fish. Does my celiac disease and my chronic urticaria increase my allergy chances to these?

No: No relative risk of peanut or fish allergy in this context. If you eat fish and peanuts without history of immediate reaction, then your risk is very low. If you strictly avoid these foods, then an Allergist can perform testing to begin to quantify risk and this can be followed by supervised food trials to confirm absence of allergy. ...Read more

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Severe urticaria & angioedema every day for 10 weeks now. Allergy tests show nothing. Not responding to antihistamine, steriods, or prednisone. Help!

Hives: I assume you saw an allergist, if not please do so. When steroids and antihistamines do not help, your doctor can suggest stronger medications. Their pros and cons should be discussed first. ...Read more

Dr. Walter Husar
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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