• danimdecker danimdecker
    July 04, 2008
    can allergy injections make you sick
    danimdecker danimdecker
    July 04, 2008

    My son is 5 years old. He was recently having horrible allergies and we had him tested. He is allergic to just about everything. He was in a constant state of allergic reaction (stuffy head, cough, wheezing.) He got to the point I thought I would have to take him to the emergency room. We started him on Singulair and zyrtec and a nebulizer as needed. We also started allergy injections. he's been on them about 3 months. We finally had an ENT look at him and we decided to have  his adenoids removed. Right before the surgery he had pnuemonia, so he missed 2 weeks of injections. Then the week of surgery I didn't take him as he had enough going on. So in all he missed 3 weeks of injections. After the surgery it was amazing. He was breathing through his nose, sleeping with his mouth closed, not snoring, no cough, no stuffy nose. We kept him on the singulair and zyrtec. The week after the surgery, I took him to get his injections. That night he started that familiar cough. The following week I took him on Monday. Tuesday morning he started coughing. Wednesday I took him for his next shot. By Thursday night, the cough was really bad and he had a 101 fever. Friday morning his heart rate was very high, his cough was horrible, he was wheezing and breathing quickly, and he had a 100.6 fever. These are all things that were happening before the surgery. I'm beginning to think he's having a reaction to the injections. Can anyone confirm this? It is Friday, the 4th of July so I will not be able to ask his doctor for 3 days. If it gets worse, (the breathing) I'll have to take him to the emergency room. But in the meantime I was just wondering if anyone has had this experience or has information that may help my son.



  • James Thompson, MD
    Health Pro
    July 13, 2008
    James Thompson, MD
    Health Pro
    July 13, 2008


    Hi Dani,


    I am sorry it took so long to answer your question. I hope your son is better. I would like to address a few of the points you discussed.


    First, allergy shots help to control and reduce the development of allergic nasal problems and asthma in the majority of patients that get them from qualified allergy specialist. Not everyone tolerates them. Some people have allergy symptoms associated with allergy shots that require adjustment of the shot program by the specialist. It is important to inform your allergist about any immediate or delayed reactions that follow allergy injections. On rare occasions allergy shots may be stopped.


    Second, your son had an elevated temperature which is unusual for reactions to allergy shots. He may have developed an upper respiratory infection several days after surgery. Adenoid and tonsil removal does not usually cure or greatly improve allergy based problems over time. Short term improvement would be expected right after surgery because of the removal of obstructed and probably swollen adenoidal tissue. Because the allergy sensitivity would still be intact despite adenoid removal, I would expect a return of allergy problems shortly after surgery.


    Finally, patients with a history of asthma are at higher risk of having severe systemic reactions from allergy shots. If asthma symptoms worsen after each allergy injection adjustments by the allergist are essential. Otherwise allergy shots may need to be stopped. This would be between you and your allergist.


    Here is a review about allergy shots written by Dr. Paula Busse. Click here.


    Again, discuss your points of concern with your allergist. It is ultimately your decision as a parent whether risks of a particular treatment outweigh the potential gain. Your allergist will provide you with more information in order to make a rational decision.


    Good Luck,


    J. Thompson, MD

    • Bruce
      December 15, 2009
      December 15, 2009

      I read the response you provided below while doing some research for my 12 year old son.  We relocated from Florida to Indiana 18 months ago, 7-8 months ago it was recommended that he take allergy shots......additionally around August he was put on other medications for his allergies (which are severe).  He was on Singulair and Allergy DN II......we noticed a couple of months ago that he was not behaving normally.  He developed "habits" but they were obsessive, he said that if he didn't do certain "rituals" three times that he was afraid something would happen to one of our family.....we took him to a child phychologist, but about the same time I started researching possible causes and found info about Singulair.....I called his allergist, explained his symptoms and he said to take him off the Singulair immediately, which we did.  The "bad thoughts" went away, but he still has these habbits (rituals) that he doesn't seem to be able to break.  My question.....is it possible that the Allergy DN II or the allergy shots are causing this problem.......we are desperate to help our son and would greatly appreciate any guidence.

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  • mo1780 June 24, 2015
    June 24, 2015
    My son had allergies to sulfa drug he was burning up with a fever for the 3 hours after he got them he was slightly red no raised rash and he was wheezing .after 2 doses I called the doc she told me it was not the medicine he probably was getting the fever from his ear infection. I gave him another dose before the doses were due there had been no fever for at least 2 hours prior sure enough within an hour he had a fever again I called the doc office she was not in one of the other doctor told me to bring him in.Sure enough he took one look and said he was allergic. Gave me another antibiotic after that last dose of the sulfa drug wore off he did not get anymore fevers and the wheezing went away READ MORE
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