Doctor insights on:
Antihistamine Overdose Symptoms
Which one: First generation antihistamines are sedating, second generation ones are not, overdosing on the latter hardly kills, but may cause sedation. Overdosing on first generation antihistamines may be more of a problem, but again they are safe in high doses. ...Read more
Antihistamine: Not likely.Get a more detailed answer ›
Antihistamines block: Antihistamines block the receptor sites for histamine released from mast cells or basophils in allergic reactions. As such they suppress symptoms to a variable amount. The only present treatment that can actually alter the allergic condition (diathesis) is immunotherapy (allergy injections). ...Read more
I have recurring symptoms of aggressive coughing. I have been using corticosteroid inhalers but the symptoms keep returning. I'm also on antihistamine?
Any type: diphenhydramine or cetirizine, might be better than others in this instance, but if your voice gets hoarse, you become short of breath or lightheaded, still take the antihistaminic and go to ER, but don't drive yourself, get somebody to drive you or call 911, at any rate if you have angioedema you need to see an allergist, check aaaai.org or acaa.org for an allergist in your area ...Read more
Which antihistamine is more effective at treating the symptoms of hives? Benadyrl or Allegra (fexofenadine)?
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
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'm babysitting a little boy with red swollen sporadic hives all over his body. No other symptoms. What can I do in addition to antihistamines?
Other options: This will usually require or more thorough work up. Most times hives in children is related to a recent viral infection. No other treatment beyond antihistamines and time is needed. If hives persist or are accompanied by other symptoms the child should be evaluated by an allergist. If he experiences any problems breathing etc. you should give epinephrine and call 911 immediately. ...Read moreSee 1 more doctor answer
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