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Search Results for: Dr. Scott Sicherer

What causes hives to appear in a food-allergic reaction?

Q: Why do we get hives in a food-allergic reaction? And will they always appear?  Dr. Sicherer: Hives, also called urticaria, develop when allergy cells in the skin release chemicals, including histamine, that cause localized swelling, redness and itching. The response looks like a series of mosquito bites, often across an expanse of skin, but various […]

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Is it common for a milk allergy to progress into a nut allergy?

Q: As a baby, my son was diagnosed with a cow’s milk allergy and now, at age 4, had a reaction to cashews and the allergist has diagnosed him with a nut allergy. Is this type of food allergy progression common? might he gain more allergies?  Dr. Sicherer: About 35 percent of infants with a milk […]

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Can Skin Exposures Worsen a Child’s Allergy?

Q: I have two young children, and my 18-month-old daughter has had an anaphylactic reaction to dairy. I’ve been letting her older brother continue to eat cheese at lunch, but sometimes he’ll touch or grab his sister’s arm before I can wash him up. This happened recently and she got a few hives. Could skin […]

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Is Peanut Oil Safe or Not?

Q: I’ve read differing views about peanut oil. Some say it’s safe for those with peanut allergy because it is “most often” highly refined and would contain no protein. The problem I have is, how would we know if it is the highly refined kind and therefore safe? What’s your view? Dr. Sicherer: The trigger […]

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Can Baked Egg Be Egg Safe?

Q: My 7-year-old is anaphylactic to milk and peanut. He also has a mild egg allergy: he has never had a problem tolerating foods containing baked egg, and has mild diarrhea if he eats an actual egg. But based on a mild-positive skin test, our new allergist is recommending complete avoidance of egg, and says this […]

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Why isn’t Sesame a Top Allergen in the U.S.?

Q: My 11-year-old has sesame allergy and I keep hearing about more and more sesame-allergic children. Why isn’t sesame on the top allergens list and labeled on foods as an allergen? Dr. Sicherer: Sesame is not regulated in U.S. labeling laws, although it is included in these laws in many other countries, including Canada. The […]

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Does Alcohol Make Food Reactions Worse?

Q: I’m a university student with food allergies. I’ve heard that if you accidentally eat a food with your allergen while also drinking alcohol, your allergic reaction will be worse. Why would that happen? Dr. Sicherer: “Co-factor enhanced food allergy” is a term used to describe a situation where a food- allergic reaction is worse […]

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Can Skin Contact Cause Anaphylaxis?

Q: My daughter, who’s 7 years old, has dairy and other allergies and asthma, and has had one anaphylactic reaction. Then last fall, she broke out in big welts on her arms where another child’s milk spilled on her. (She did not get wheezing.) Is it possible to get anaphylaxis from skin contact with an […]

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How Do You Know if an Allergy is Truly Gone?

Q: My 6-year-old daughter’s IgE blood test numbers for peanut allergy have significantly decreased, and the allergist is offering an oral challenge test. My question: as allergic reactions aren’t consistent, if she doesn’t react or has only minor symptoms on the day of the oral challenge, can we be certain this allergy is truly gone? […]

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Do Reactions Worsen With Each Exposure?

Q: Is it true that food allergies to shrimp or peanuts will get worse with every accidental exposure? I had my first (quite bad) reaction to shrimp at 25 years of age, and this worries me. Dr. Sicherer: No, it is not true. It is a common myth that allergic reactions automatically become worse with […]

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