Currently there are "9 comments" on this Question:

  1. Geneva says:

    Benadryl is the best and for adults two caps (25 mgs. each) are what you should take. It takes only 10 to 15 minutes for the swelling to go down, but if you've left it for a For mild hives a topical antihistimine should reduce the swelling and redness fairly quick. How long does it take for a peanut allergic reaction to go away

  2. Alona says:

    Well it could be possible that your still exposing yourself to the stimuli which caused the reaction so that could account for the prolonged reaction.

  3. Fiona says:

    My dog has hives. I have no Benadryl. What else can I do? She is boxer.

  4. Tiara says:

    Benadryl should begin to give you relief from hives in a couple of hours. More:http://www.chacha.com/question/how-long-does-it-take-for-the-hives-to-go-away-if-i-took-a-benadryl

  5. Sidney says:

    get allergy medicine like benadryl..its over the counter More:http://wiki.answers.com/Q/What_helps_the_hives_go_away

  6. Tracie says:

    What are you reacting to and are you sure they are hives? Benadryl can take a bit of time to kick in, but if your unsure of what is causing the hives then you should see a doctor, especially if the hives keeping appearing. More:http://answers.yahoo.com/question/index?qid=20081011160803AA8WHiA

  7. Myesha says:

    May 28, 2010 How long has it been since you have given her the benedryl? I would give it the day, and if it doesnt go away, I would take her to the vet.

  8. Greta says:

    Following the steps below will help you alleviate the discomfort of your dog's hives. Give your dog an antihistamine like Benadryl. If your dog's hives don't go away after a few days or seem to get worse, contact your vet for further treatment. explain to them whats happened and they should take a look at him for free, Detail:http://www.ehow.com/how_4473943_treat-hives-dog.html

  9. Melanie says:

    Hey, I have the exact same thing . My doctor gave me some Benadryl and they went away almost instantaniously. I got them again tonight and took 2 benadryl capsules at home and the itchyness has gone down along with the swelling, but it did take a couple hours.

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