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Doctor insights on: Best Antihistamine For Food Allergies

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What dosage of antihistamine should I take to resolve a mild food allergy reaction?

What dosage of antihistamine should I take to resolve a mild food allergy reaction?

Any recommended: Dosage of any OTC antihistamine, either first or second generation, will be effective, more important though is avoidance of re-exposure to the offending food till problem is sorted out. Keep antihistamine handy for accidental exposure, if severe reaction, keep epipen (epinephrine) handy too, see your doctor/allergist if the problem is bothersome, best wishes ...Read more

Dr. John Chiu
2,628 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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What kind of antihistamine help my facial swelling due to food allergy?

What kind of antihistamine help my facial swelling due to food allergy?

Help us by...: Help us by defining what you mean by facial swelling (hives, asymmetric, lips, peri-ocular, etc.), what are the accompaniments (like difficulty swallowing, hard to breath?) and why you think this is a histamine-mediated food allergy? ...Read more

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Do antihistamines help with food allergies?

Do antihistamines help with food allergies?

Yes: They can help alot depending upon what you are allergic to. Some food allergies, such as peanut, even oral antihistamines are not strong enough to prevent anaphylaxis and avoidance is the only "treatment" in wide spread use. Milder allergies can be improved with antihistamines. Check with your allergist. ...Read more

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If my 9 month old infant has broken out in hives possibly from a food allergy, is there an antihistamine?

If my 9 month old infant has broken out in hives possibly from a food allergy, is there an antihistamine?

Call pediatrician: There are antihistamines that can be used for infants. The dose should be adjusted for your infant's weight. Non-sedating antihistamines are preferred as drowsiness after hives may be a symptom of a more serious allergic reaction called anaphylaxis. Benadryl (diphenhydramine) can also sometimes cause unexpected irritability. You will want to discuss these issues with your pediatrician. ...Read more

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Swollen lips & blisters since 5:45am, saw hospital was given antihistamines and steroids, told POSSIBLE FOOD ALLERGY. Swelling returned it now 10:32pm?

Swollen lips & blisters since 5:45am, saw hospital was given antihistamines and steroids, told POSSIBLE FOOD ALLERGY. Swelling returned it now 10:32pm?

Airway?: Keep in mind the half-life of your antihistamine. It is probably wearing off and needs to be redosed. If not improving within an hour of redosing you need to go back to the ER. Cetirizine 10mg will last 24 hours. ...Read more

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I have a mystery food allergy that leads to severe bloating and diarrhea. I usually take an antihistamine & am fine. Had a bad reaction, felt faint, bright red blood in stool. Should I be worried?

I have a mystery food allergy that leads to severe bloating and diarrhea. I usually take an antihistamine & am fine. Had a bad reaction, felt faint, bright red blood in stool. Should I be worried?

Start a food diary: Though it is time-consuming, you may wish to start a food diary. Begin with simple foods (only!) to which you KNOW you don’t react. Then add a new food ever 3 or 4 days and watch for an allergic reaction. Note on paper or smart phone (there’s a food allergy app for this) no, mild, or bad reaction. This takes time and diligence, but you should be able to find out which foods to avoid. ...Read more

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Can loratadine be used for a food allergy in place of benadryl (diphenhydramine)?

Can loratadine be used for a food allergy in place of benadryl (diphenhydramine)?

Maybe . . .: Benadryl is a brand of generic diphenhydramine which is a 1st generation antihistamine. Loratadine is a generic 2nd generation antihistamine. While it's best to avoid foods that cause allergies, answer to your question is a qualified maybe b/c it depends upon type of allergy and amount of exposure. If you're anaphylactic to peanuts, only epinephrine will save you, in which case you need EpiPen. ...Read more

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My friend has a food allergy reaction. We are unable to access Benadryl (diphenhydramine) (in Saudi Arabia). What action can we take? How much Zyrtec can she take?

The recommended dose: Take 10mg daily as is the recommended dose. There are several other anti-histamines other than benadryl (diphenhydramine) that could be prescribed to her if the allergy is severe. Certainly avoid the foods first and foremost. ...Read more

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Is it safe to take Benadryl (diphenhydramine) after 3 glasses of wine if I feel I may have been exposed to a food allergy of mine?

Is it safe to take Benadryl (diphenhydramine) after 3 glasses of wine if I feel I may have been exposed to a food allergy of mine?

NO: Benadryl (diphenhydramine) makes you groggy like a glass of wine. 3 glasses of wine makes most of the people very groggy. I don't know about you (depend on of body mass and tolerance). Having an allergic reaction should be addressed as well especially after that drinking. If the allergic reaction is not severe you consider drinking as much water. If the reaction is severe you need to see a doctor. ...Read more

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Can food allergies cause your joints to swell up, I notice I feel better when I don't eat much, I take Benadryl (diphenhydramine) every night, and haven't reacted to foo?

Can food allergies cause your joints to swell up, I notice I feel better when I don't eat much, I take Benadryl (diphenhydramine) every night, and haven't reacted to foo?

Food allergies: It is unlikely that food allergies can cause joint swelling. You need to see an allergist and get retested for food allergies, milk, eggs, wheat, rye and soy are not typical allergies for adults. ...Read more

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Rash breakouts on legs from food allergy. What OTC can I take besies benadryl (diphenhydramine)?

Rash breakouts on legs from food allergy. What OTC can I take besies benadryl (diphenhydramine)?

No much OTC meds: If you have real food allergy and you break out in hives when you eat that particular food, beside benadryl, (diphenhydramine) there are not much otc meds you can take. Go to the nearest er if you have nausea, vomiting or difficulty breathing since those are signs of anaphylaxis and can be dangerous. If the rashes are eczema but not hives, you can use otc cortisone cream, moisturizer and see an allergist. ...Read more

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How can you best gain weight given my food allergies and dietary restrictions?

How can you best gain weight given my food allergies and dietary restrictions?

What is your weight?: Unless you are grossly underweight, it is not a good idea to gain weight. Given your health conditions, it would be prudent to discuss the matter with your doctor. ...Read more

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What is the best food allergy test?

What is the best food allergy test?

Skin Prick Testing: Food allergies are diagnosed first by getting a detailed clinical history of reaction. If history is concerning then skin prick testing and/or serum IgE testing to concerning foods will be drawn. Skin prick testing usually done first followed by serum testing to follow sensitivity over time. Prick to prick testing with actual food is also helpful to help clarify risk. See Allergist for details. ...Read more

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What is the best food allergy, sensitivity or intolerance test?

What is the best food allergy, sensitivity or intolerance test?

Avoidance &challenge: Every test out there is imperfect. This is because there are many mechanisms of food sensitivities- some mediated by igg, e, a & m antibodies, some by lymphocytes, some by inability to digest (lactose), some by inability to metabolize (nightshades) and there aren't tests for all of these. Avoiding suspect foods for 5 days to 1 month & challenging seeing if you react is still the best test! ...Read more

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Which multivitamin brand is best for food allergies?

Which multivitamin brand is best for food allergies?

None: There is no need to start a vitamin to treat or prevent food allergies. If you are allergic to milk and do not have sufficient calcium in your diet you may need a calcium supplement. ...Read more

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What's the best way to know if my tiredness stems from food allergies?

Which food: If one food then quit and see what happens , if big reaction and taking lot of Benadryl (diphenhydramine) can cause tiredness. ...Read more

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What's the best way to stop a food allergy (immediate or delayed, but not anaphylactic shock) reaction?

What's the best way to stop a food allergy (immediate or delayed, but not anaphylactic shock) reaction?

Benadryl (diphenhydramine): If a reaction such as itching happens to a food- an antihistamine like Benadryl (diphenhydramine) may help. However, be careful with food allergies because they can worsen each time you eat that particular food. Therefore, the first time you may feel just mild itching and swelling but the next time it could be a full anaphylactic reaction. The safest thing to do is to avoid the food until you get allergy tested. ...Read more

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Dr. Michael Zacharisen
596 doctors shared insights

Food Allergy (Definition)

Results in a response like diarrhea, vomiting, hives, or anaphylaxis when certain food is eaten. Can also be more subtle and lead to chronic congestion, headaches, ...Read more


Dr. Heidi Fowler
3,517 doctors shared insights

Nutrition (Definition)

Nutrition is the synergistic combination of nutrients found in food and water that allows the human body to perform all essential ...Read more