Doctor insights on:
Can Airborne Allergies Cause Hives
Several causes: The most common causes of hives are allergy, autoimmunity, and physical stimuli. Foods or drugs can cause hives - peanut and shellfish are common food allergens, and Ibuprofen and penicillin are common drug allergens. Some hives are due to physical stimuli such as cold, heat, pressure or stroking of the skin.
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
I have a mastiff that causes hives only when she puts her paws on me. Is this a mild form of allergy?
Yes: This type of contact allergy to dogs is very common, you may have subtle nasal symptoms that you do not attribute to it, but see if you feel better when on vacation without your dog. Getting tested by an allergist will give you the definite answer and help to manage it.
What are the causes of daily hives. I know its an allergy to something but having no luck with testing.?
Chronic urticaria: Sounds like you have chronic urticarial. While allergies may play a role of causation in many of these cases, others are caused by environmental circumstances - hot or cold environment, stress, or other non-allergic conditions. Still best to work with allergist to find out what your triggers may be and explore alternative options for treatment.
I break out in very bad large hives. Itch terribly. I have been allergy tested, all neg. What may b cause?
Damn hives: Most people that have chronic urticaria, hives lasting more than 6 weeks, have ciu, chronic idiopathic urticaria. Allergy is probably responsible for only 5 - 10% of ciu. Recent data suggests some chronic hives are autoimmune and occasionally they can be a marker of other systemic diseases. A good history will usually direct evaluation if any. Controlling medications reason for allergist consult.
What makes hives come out, and do the different types of allergies cause different sizes or different types of hives?
Depends on trigger: Urticaria (hives) is common, affecting up to 20% of the population. Acute hives is defined as periodic outbreaks of red, raised itchy lesions that resolve within 6 weeks. Common viral and bacterial infections can trigger an outbreak, however medications, foods, and insect stings can also cause acute hives. An Allergist might determine cause of hives without testing, but depends on clinical history
Daughter had hives on and off for 5 days last week and now my other child is getting neither has any allergies. What kind of illnesses can cause this?
Viral illness: I suspect a viral illness. This would be a ready explanation since they both have a suggestion there is a contagious component
My son developed hives and I wonder if it was because he ate some green bananas. Can hives be caused by a banana allergy?
Generally not: Hives due to food allergy will typically start between 10 and 60 minutes after eating a food, and last for several hours - typically gone by the next day. They will not come back after that, unless the same food is eaten again. Recurrent hives regardless of any recurring ingestion or exposure should be investigated by an allergist.See 1 more doctor answer
Does a food allergy reaction usually cause hives? I have lost 30 pounds unintentionally and can't stop itching wverywhwre?
Yes: All drugs can cause an allergic reaction. The best way to tell is if the rash started a 1-3 days after starting the drug and you have taken no other drugs. If you think you are having a reaction, call your doctor. If you get symptoms like throat swelling or trouble breathing, get to the emergency room.
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.
My fiance has serious allergies but we are having issues with what the cause is, she will randomly break out in hives, itch all over, cant breathe?
See an allergist: She may very well have urticaria/angioedema, most of the time no clear cause can be elicited, but she needs good management. Check aaaai. Org or acaai. Org for an allergist in your area, good luck
I had hives for about 6 weeks and Claritin (loratadine) got rid if them- does this mean the hives were definitely caused by an allergy? Is another cause possible?
I've had chronic hives for four years. My husband just developed identical symptoms. Allergy to dust mites but could there be another underlying cause?
HIVES FOR FOUR YEARS: YOUR BEST BET IS CONSULT WITH A DERMATOLOGIST OR AN ALLERGIST. THESE DOCTORS WILL BE ABLE TO TEST BOTH OF YOU TO FIND OUT WHAT YOU BOTH MIGHT BE ALLERGIC TO. DO NOT WAIT! BEST LUCK TO YOU BOTH.. .
Is it dangerous to do an at home allergy patch test? We're trying to figure out what caused my 22 y/o son to break out in hives and angioedema last week. We believe it might be a new laundry soap. Would it be dangerous to take a small 1 inch bandage, pu
Epinephrine is best: Epinephrine is the treatment of choice for food allergy reactions. Zyrtec (cetirizine) may help the hives although it will likely not do much for the more concerning symptoms (breathing problems, low blood pressure, vomiting etc.) that can result from an allergic reaction to peanuts.
I have hives all over. If this is caused from shampoo allergy how long will it take for hives to go away? Antihistamines not working.
Depends: It is unlikely that the shampoo is causing a generalized hive condition. If antihistamine has not worked even when taken up to 4x/day, then I would recommend that you consult an allergist.
I have had hives on and off for a couple of weeks now what is the cause of this? I have been taking an allergy medicine with prednisone.
Double up AH: Unfortunately, we have no explanation for most cases of hives unless there is an obvious trigger (drug, food etc). For most cases of hives lasting between 72 hrs and up to several weeks, a viral infection would be the presumed culprit. Try ah up to 4 doses per day. Prednisone should be used only if ah in high doses failed.
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