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Doctor insights on: Benadryl Asthma Allergy Symptoms

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Could Benadryl (diphenhydramine) help with asthma like allergy symptoms?

Could Benadryl (diphenhydramine) help with asthma like allergy symptoms?

Benadryl (diphenhydramine) is sedating: Claritin, zyrtec, allegra, or Benadryl (diphenhydramine) can help with allergy and asthma symptoms caused by allergies to respiratory pollens or other airborne allergens. One should work with his doctor to see which combination of over-the-counter allergy meds and prescription asthma inhalers/pills work the best. A patient will learn over time, what medicines to add or increase, depending on how "bad" the air is. ...Read more

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Dr. Sue Ferranti
2,965 doctors shared insights

Asthma (Definition)

Asthma is a disease of the lungs caused by chronic inflammation of the airways most often caused by allergies. This inflammation results in airway swelling and hyperactivity leading to difficulty breathing, shortness of breath, dry cough, etc. MIT is a diagnosis made by combining clinical ...Read more


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Is it safe to take Benadryl (diphenhydramine) with cymbacort , I have COPD and mild asthma but am having some allergy symptoms right now?I also use rescue inhaler

Is it safe to take Benadryl (diphenhydramine) with cymbacort , I have COPD and  mild asthma but am having some allergy symptoms right now?I also use rescue inhaler

Yes, but: Benadryl (diphenhydramine) is an excellent antihistamine and works very well. However, the side effects (sedation, visual disturbances, dizziness when standing up to fast can be problematic). There are other antihistamines that have fewer side effects like Claritin which are more likely to not affect other medications you may be using. ...Read more

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Will giving Benadryl (diphenhydramine) help my 10yo with his asthma at night?  he also has allergies.

Will giving Benadryl (diphenhydramine) help my 10yo with his asthma at night?  he also has allergies.

No: Children who have asthma may have symptoms during the night, the major one being a nighttime dry cough. Benadryl(diphenhydramine) is an antihistamine which helps with allergies and can cause sleepiness. In most cases, Benadryl will not hurt the asthma but will not fix the problem. Asthma symptoms in the night are usually signs of poor asthma control and warrant follow-up with your pediatrician. ...Read more

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I have really bad allergies & also asthmatic, I am wondering if it is safe to take Benadryl (diphenhydramine) as my allergies are unbareable, will it affect my asthma?

I have really bad allergies & also asthmatic, I am wondering if it is safe to take Benadryl (diphenhydramine) as my allergies are unbareable, will it affect my asthma?

Better to use Clarit: Benadryl (diphenhydramine) or diphenylhydramine is a first generation antihistamine wich is quite sedating and has to be taken every 4to6 hours to be effective, while Claritin is long actong once a day, non sedating and can be taken with all other asthma meds. ...Read more

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I have asthma, allergies and pnd. I believe Benadryl (diphenhydramine) will curb my pnd, yet may harm asthma. Should I use it here and there at regular strength? Thank

I  have asthma, allergies and pnd. I believe Benadryl (diphenhydramine) will curb my pnd, yet may harm asthma. Should I use it here and there at regular strength? Thank

Maybe maybe not: Often asthmatics do use antihistamines in cinjunctinwith their routine asthma meds. Discuss using a non-sedating antihistamine like Claritin with your phsyician. Have you tried nasal saline which does not affect your asthma and may reduce your pnd. ...Read more

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I wanted to know I took benadryl (diphenhydramine) because my allergies are acting up and I'm stuffed up, i have a cough, I'm weeding because my asthma as well. Is it o?

I wanted to know I took benadryl (diphenhydramine) because my allergies are acting up and I'm stuffed up, i have a cough, I'm weeding because my asthma as well. Is it o?

Probably not: I presume you are asking whether it is ok to do some weeding when your nose is stuffed up and your asthma is not controlled. In general , the answer would be no since you are likely allergic to weed pollen and molds from the disturbed soil. It is also important for you to call your doctor about your asthma. Benadryl (diphenhydramine) or any other antihistamine has no decongesting action, nasal steroid does. ...Read more

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Would it be possible that a pregnant woman take benadryl/antihistamine to treat an allergic reaction or help allergy induced asthma?

Would it be possible that a pregnant woman take benadryl/antihistamine to treat an allergic reaction or help allergy induced asthma?

Yes & No: Benadryl (diphenhydramine) is considered safe in pregnancy & may be used to treat allergic conditions like allergic rhinitis or hives. Antihistamines like Benadryl are not effective for itching not associated with a rash. This can be due to pregnancy-related liver problems. Talk to your OB about that. Benadryl is also not effective for asthma. There are safe asthma drugs to use while pregnant. ...Read more

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What are the best treatments for asthma and allergies? I am using nasonex, spirivia, albueterol, and benadryl (diphenhydramine). Plus doing sinus rinses. Still sick.

What are the best treatments for asthma and allergies?  I am using nasonex, spirivia, albueterol, and benadryl (diphenhydramine). Plus doing sinus rinses. Still sick.

Asthma guidelines: If you do have asthma spireva is not an asthma medication, although is sometimes of benefit especially if there is also copd. I cannot tell you what is the correct asthma medication for you. You need to see a board certified allergist for appropriate evaluation and treatment of your entire respiratory system. ...Read more

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I take Claritin & sudafed daily to help w/allergies & asthma, but allergies &/or head cold are very bad now. What else can I add? Benadryl (diphenhydramine)?

I take Claritin & sudafed daily to help w/allergies & asthma, but allergies &/or head cold are very bad now. What else can I add? Benadryl (diphenhydramine)?

Nasal steroid sprays: The most effective treatment for nasal allergies are nasal steroid sprays such as flonase, qnasl, nasonex, (mometasone) veramyst, etc. These are safe and effective, but a person needs a prescription from their doctor. ...Read more

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Dr. John Chiu
2,491 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


Benadryl (Definition)

Diphenhydramine is a sedating antihistamine which is a kind of antihistamine type drug (common ...Read more