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What causes dizziness, sinus pressure and headache while on H2 blockers?

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Posted on Mon, 25 Jul 2016
Question: When my allergies flare up, of course I have the sinus pressure and headache. But my biggest problem is dizziness esp when I turn my head. I see alot of symptoms but not the dizziness. Is this a common symptom also. What is an H2 Blocker. What is the best way to prevent these occurrences. They keep me down for too long. Thank you so much. Email: YYYY@YYYY
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Answered by Dr. Kaushal Bhavsar (27 minutes later)
Brief Answer:
Drugs used for allergy can cause dizziness.

Detailed Answer:
Thanks for your question on Healthcare Magic.
I can understand your concern.
Dizziness is common side effect seen with drugs used for allergy.
Commonly used drugs for allergy are antihistamine and anti allergic (montelukast).
Anti histamine drugs are known as H2 blocker. They can cause dizziness.. So please let me know
1. Are you taking any antihistamine drug?
2. Which drug you are taking for allergy?
Please reply me answers of above asked questions, so that I can guide you better. I will be happy to help you further. Wish you good health. Thanks
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Follow up: Dr. Kaushal Bhavsar (25 minutes later)
I'm dizzy even when I don't take anything. One of my first symptoms is pressure and dizziness. I actually try not to take any medication because it makes me feel tired and a little sick. I take it when nothing else is helping with the pressure and the dizziness.
My regime is nasal rinse, nasacort, steam and warm compresses and it still lasts a long time.
Am I doing the most I can do. Should I use a steam humidifier or air purifier or both.
I'm told I'm allergic to mold and pollen and a number of trees except pines. What is the best preventative to these sinus conditions
doctor
Answered by Dr. Kaushal Bhavsar (56 minutes later)
Brief Answer:
Yes, you can try both of them.

Detailed Answer:
Thanks for your follow up question on Healthcare Magic.
I can understand your concern.
Best treatment for allergy is identification of allergen and if possible complete avoidance of it.
Since you know the allergens, you should avoid them completely.
So wear face mask when you are outside.
Yes, you can try both steam humidifier and air purifier both for better prevention of allergen exposure.
You can take fexofenadine. It is newer antihistamine which lacks sedation, giddiness, dizziness and other side effects of H2 blocker.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
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Follow up: Dr. Kaushal Bhavsar (24 minutes later)
Thank you Dr. I will use steam and air purifier on a regular basis and try the fexofenadine.
doctor
Answered by Dr. Kaushal Bhavsar (5 minutes later)
Brief Answer:
What is your weight?

Detailed Answer:
Thanks for your follow up question on Healthcare Magic.
I can understand your concern.
Yes, you should definitely try fexofenadine.
Please let me know your weight so that I can tell you exact dose in your case. Also tell me your living place so that I can tell you trade name which you can buy easily over the counter.
I will be happy to help you further. Wish you good health. Thanks.
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Dr. Kaushal Bhavsar

Pulmonologist

Practicing since :2008

Answered : 14949 Questions

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What causes dizziness, sinus pressure and headache while on H2 blockers?

Brief Answer: Drugs used for allergy can cause dizziness. Detailed Answer: Thanks for your question on Healthcare Magic. I can understand your concern. Dizziness is common side effect seen with drugs used for allergy. Commonly used drugs for allergy are antihistamine and anti allergic (montelukast). Anti histamine drugs are known as H2 blocker. They can cause dizziness.. So please let me know 1. Are you taking any antihistamine drug? 2. Which drug you are taking for allergy? Please reply me answers of above asked questions, so that I can guide you better. I will be happy to help you further. Wish you good health. Thanks