Doctor insights on:
Oral Antihistamine Allergy Signs
What is the best allergy treatment for eyes I mean the best eye drops for allergy. Not over-the-counter drugs. Oral antihistamine alone not helping.
Patanol (olopatadine): I prefer patanol (olopatadine) drops. There are others which are similar. The important thing is to wash your face with a cool wash cloth before applying to remove any lingering allergens from your facial skin and around your eyes. This helps my patients a great deal. If you're not better with drops see an allergist for testing, you may want to consider allergy shots. ...Read moreSee 1 more doctor answer
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
Antihistamine: It may help depending on which type of allergic reactions you get and which organ systems are affected. Can you be more specific? ...Read more
Probably not: Oral allergy syndrome is usually caused by pollens and sometimes nuts. Claritin, zyrtec and Allegra (fexofenadine) can help with pollen allergies. But like any other allergy, it is best to stay away from the problem. Have an allergist test you and see what treatment would be best. ...Read more
Yes it can: That's why you need to know the triggers well, try to avoid them as much as you can, ask your doctor about keeping an Epipen (epinephrine) handy, just in case a severe reaction develops, see an allergist if you can for complete assessment. Check aaaai.org or acaai.org for an allergist in your area, good luck ...Read more
What are the risks of low-dose oral prednisone taken over 1 or 2 decades? I am a vet with allergies to pets. Antihistamines not effective anymore.
It depends how low: If the dose is low it will replace what your adrenal makes. Even at that level it is tough sometimes to get off of it. With high doses bad problems can occur in all areas of your body. Talk to your doctor or get another opinion about what is best. Thank you for your service. ...Read moreSee 1 more doctor answer
Had septoplasty/turbinectomy to clear stuffy nose. Still producing clear mucus/stuffy feeling. No allergies & oral antihistamines not effective. Ideas?
Yes and no: Antihistamines, as their name implies, effectively treat itching caused by histamine released from immune cells. This includes allergies, but also other disorders that cause histamine release, like chronic hives or mastocytosis. Itching from other causes, like liver disease or disorders of the nerves, typically does not respond to antihistamines. Talk with your doctor for more info. ...Read more
Is it right that for those who have allergies and are taking antihistamines, the mucus will become thicker?
Depends: First generation antihistamines have some antocholinergic properties that can thicken mucus. Second generation antihistamines not so much. Depends on what medication you are taking. ...Read more
My son isn't allowed to take antihistamines for seven days before his allergy tests. What should I do to treat his symptoms?
Topicals: Treat based on symptoms. These shouldn't interfere w tests. Itching and eczema can be helped by keeping the skin cool, using Benadryl (diphenhydramine) gel, cortaid, sarna lotion, or any of the cooling gels. Soaking him with cool, wet towels can help, or even bathing in j&j vapor bath can be helpful + soothe raw skin. Sinus rinses, a neti pot, steroid or antihistamine nasal sprays, or saline nasal gel can help. ...Read more
My name's Julie. I'm not usually bothered by seasonal allergies I am this year. If you take enough antihistamines will it build up in the system?
Nasal allergies: antihistamines can offer relief for mild symptoms and may build up.Nasal steroids ( Namsacort and Flonase are nonprescription) are going to be more effective for most people. The nasal steroids usually take 2-3 days to start making a difference and reach full effect the in 2 weeks. They are best used regularly in the season. Prescription antihistamine nasal sprays that work in 30 minutes. ...Read more
Are allergies bad for your health? If so, why do doctors recommend antihistamines? Isn't that making the allergies worse while lessening the symptoms?
Agree with Dr. Chiu: Antihistamines give symptomatic relief but don't effect the course of allergies one way or another. Let me answer what I think you are getting at. In many diseases masking the symptoms is like a band aid and a mistake to not treat the underlying cause. Some people actually do get over allergies by themselves but not most. Allergy immunotherapy is the only treatment that affects the disease ...Read moreSee 2 more doctor answers
I seem to have developed an allergy to our new dogs. Tried several antihistamines but Benadryl (diphenhydramine) works best. Can i take on a regular basis?
Allergy: Remember the best treatment is avoidance and we have the same problem. I'd sacrifice to be with my dogs too, hehehe. If you can tolerate Benadryl (diphenhydramine) and it's the only thing that works, you can take it regularly, but remember, it can make you sleepy. Have fun with the dogs, i hope you will develop tolerance. ...Read moreSee 1 more doctor answer
Have you ever heard of anyone w/true allergy to benadryl (diphenhydramine)? Would this allergy be likely to turn serious? How can someone be allergic to antihistamines?
Yes: Good question. It is very rare but does happen. Sometimes they are not allergic to the Diphenhydramine but the dyes and fillers used to make the medicine. But people have also had reactions to dye free benadryl (diphenhydramine). You can develop an allergy to anything. I have seen people with Benadryl (diphenhydramine) allergy who could take other antihistamines such as hydroxyzine. ...Read more
It depends: It depends on the antihistamine and when you are exposed to the cause for your allergies. Antihistamine pills generally take at least 30 minutes to two hours to take effect and peak hours later. Pollen levels are highest in the morning, but if you are exposed to other allergens such as animal dander or dust, those levels would affect you at night. Take it a few hours before your worst time. ...Read more
Natural : Consider saline nasal rises such as neilmed that you can get at any pharmacy without a prescription to remove nasal allergies but also using a otc med such as naph con a. ...Read more
Antihistamines seems to wear off at ~8 hours, followed by allergies later. How much antihistamine should I take everyday? Is too much a day harmful?
4x/day: With non-sedating antihistamine, you can take it up to 4x daily. However if your symptoms are that severe, you need to consult an allergist since antihistamine alone rarely provides enough relief since it does nothing on the nasal congestion. ...Read more
Mixing antihistamines gives me better relief from allergies. Except for additive effect there seems to be no interaction between them. Can I mix them?
THERE IS ABSOLUTELY: No medical indication to do so. It is ok to alternate, but don't take 2 of the same category of meds. ...Read more
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