Doctor insights on:
Benadryl Dosage For Hives Adults
I had hives last night and took 2 benadryl (diphenhydramine) one at 12 and one at 3am. If I get hives could that dose last night subdue new ones today at 4:18pm?
Don't think so: Benadryl (diphenhydramine) usually is taken every 6 hours. It generally lasts 6-8 hours. Other factors include how big a dose was taken, and how many hives are coming out on the skin. For example, having large numbers of hives continuing to appear may mean a need for a bigger dose of Benadryl (diphenhydramine) plus adding other medications. ...Read more
If I was allegic to shrimp as a kid can I try it now as a adult and see if I out grew it. And if I get hives can I use benadryl (diphenhydramine)?
Shell fish allergy: Do not treat your allergy carelessly. If you want to test it then go to a qualified allergist. Take your shrimp along (no touching of course) and you are the doctor can have lunch. If you react you will need epinephrine, oxygen, and then Benedryl to recover. If you don't react you and your doctor enjoyed lunch. Some doctors may not want you to try due to the risk. Get an epipen too. ...Read more
I've had hives for 3 days. Standard dose of OTC Benadryl (diphenhydramine) not helping - can I take more? I am also running a temp of @ 100.0. Nrml for me is 97.4.
Hives: Hives can be itchy and painful. I always worry if patients start to have trouble breathing. If this is happening, please go to the emergency room now! Otherwise, tylenol (acetaminophen) 1000mg 3x daily and Benadryl 50mg 3x daily can be very helpful. Please seek medical care, if these hives last another 2 days. Feel better! ...Read more
I have had an allergic reaction to Bactrim, I currently have hives from head to toe, literally. What dose of benadryl can I take?
Depends: Benadryl is sedating and interacts with alcohol and other sedating meds. 25mg is usually a good starting point. Always read and follow the directions provided with any otc medication. Also recommend a long-acting medication such as cetirizine for sustained effect when treating new hives) Notify the treating physician and, if hives occur in other circumstances, see an Allergist. ...Read more
4 year old had hives. Gave Benadryl (diphenhydramine) at 6 pm. Woke up at 12 with much worse hives whole body. 2nd dose of benadryl (diphenhydramine). 1:30 vomit. No fever.?
I took an dose of NyQuil. Within a few minutes I had hives and redness on my forehead, nose, and chin. I took a Benadryl for the rash. Am I safe?
I have had hives for 4 days, even during a Medrol dose pack (for knee steroid shot), taken 400 mg Benadryl (diphenhydramine) and they're back. Lip swelling - ER???
Preferable to find c: It is preferable to find cause or trigger for hives. Whether drug induced, infection, or food allergy. In many case there is no direct cause and antihistamines may be necessary. There are non sedating antihistamines which work as well or better than benadryl (diphenhydramine). ...Read more
I'm taking Benadryl (diphenhydramine) due to hives. But I need to go back to work! What should I do?
I'm having hives and took 50 mg Benadryl (diphenhydramine) and didn't help. Should I take another 25 mg?
Try long-acting AH: Benadryl (diphenhydramine) seldom works on hives, in my experience; another 25mg will just make you sleepy, if you aren't already. Try one of the long-acting antihistamines like Allegra or Claritin, both of which are available OTC now. Hives can be difficult to treat, though; if that doesn't work, you'll need to see your doctor or a dermatologist, who will try to determine what is causing them. ...Read more
I've had hives for the past 4 days, and even while taking benadryl, (diphenhydramine) they are progressively getting worse.
Pls c ur MD: Or your allergist, you will stronger prescription medicine, good luck ...Read more
I've had hives for over six weeks and I'm it's becoming really annoying, If I take Benadryl (diphenhydramine) can they go away for good?
No: Benadryl (diphenhydramine) is just a short acting antihistamine that will help the hives and itching only for a short period of time., maybe a few hours. Longer acting antihistamines like Zyrtec or Allegra will help, but you might need more than one per day. You should see an allergist for further evaluation and management, especially if hives continue despite antihistamine therapy ...Read more
What could be causing hives? Started yesterday, took benadryl They returned today Only thing that changed is that I started using Colgate White Pen
Allergin: Hives are triggered by your body's immune system overreacting to exposure to a substance - either by skin contact or ingestion. Your body releases histamines and other things that trigger an allergic reaction - like hives. Soaps, detergents, perfumes, plants are common contact triggers, as are certain foods - like nuts and fruits. Cold temperatures, stress and some medical conditions too. ...Read more
I break out into what looks like hives everyday at the same time! Benadryl (diphenhydramine) works, but should I keep taking it or should I seek help?
Allergies....: Do not improve on their own. See an allergist ...Read more
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