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Doctor insights on: Do Allergy Shots Contain Mercury Thiomersal

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Dr. John Chiu
2,630 Doctors shared insights

Allergies (Definition)

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


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Is thimerosal used in allergy shots?

Is thimerosal used in allergy shots?

Possibly: You would need to actually look at the package insert for the ingredients. Many multi-dose vials of injectables will contain thimerosal as a preservative to prevent contamination. Talk to your allergist who will know what they are using and be able to look at the ingredients. ...Read more

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Can allergy shot contain mercury (thiomersal)?

Can allergy shot contain mercury (thiomersal)?

Not likely: Allergy shots (allergen immunotherapy injections) as administered by allergists contain the allergen such as tree, grass, weed, dust, dander etc and saline, glycerin or phenol as the preservative. There should be no thimerasol. ...Read more

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Do allergy shots have same type of additives (mercury) as vaccines?

Do allergy shots have same type of additives (mercury) as vaccines?

Phenol: Phenol is the typical preservative in allergy shots and is not believed to be dangerous to you in small doses but prevents bacterial and fungal growth. ...Read more

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Odds of getting a reaction from allergy shots?

Odds of getting a reaction from allergy shots?

Severe reaction rare: Risks of local and systemic allergic reactions: 1/2000 shots. Very low risk of death associated with immunotherapy: 1 in 2.5 million injections. Due to risk shots should be given in a physician's office. Each shot requires 30 minute wait in office to monitor for possible reaction and to treat appropriately should one occur. Systemic reactions may occur after the 30 minute wait period but are rare. ...Read more

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Could allergy shots make allergy symptoms worse?

Could allergy shots make allergy symptoms worse?

Sometimes: Occasionally allergy shots can exacerbate allergy symptoms especially if symptoms are severe or you are sick. This is why allergy shot should be given in doctors office. ...Read more

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Can you tell me is there any assistance covering allergy shots?

Can you tell me is there any assistance covering allergy shots?

Insurance: Most insurance companies still do cover allergy shots at least to some degree. You may have co-pays with each injection however so it is best to find our your coverage first. ...Read more

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Help please. Could allergy shots eliminate my allergic reactions to cats?

Help please. Could allergy shots eliminate my allergic reactions to cats?

possible: Donot let cat sleep in bedroom, useallerpet on cat, change filter once a month use nasal chrome 3 times a day. After tyou pet the cat wash hand and change the shirt and saline nasal wash. ...Read more

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Do allergy shots help with OAS?

Do allergy shots help with OAS?

No: There is no such thing, the only treatment available is avoidance of triggering food (s). However some triggering foods would have cross reactivity with pollens that would cause allergic rhinitis (hay fever) trial of allergy shots then would be to treat hay fever not the OAS symptoms, whether OAS can be helped as a side benefit is doubtful, best wishes ...Read more

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Weight gain from allergy shots?

Not likely: Unless there is some reason why you would be pretreated before your injections with something like prednisone, it is very unlikely that your allergy injections would affect your weight. ...Read more

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What harm would allergy shots do to a fetus?

What harm would allergy shots do to a fetus?

None known.: Although some research has linked excessive histamine release to preterm labor, allergen desensitization injections under the care of a knowledgeable allergy/immunology specialist and in coordination with a maternal-fetal medicine doctor should be safe during pregnancy. I would, however recommend waiting until postpartum for such poorly studied intervention during pregnancy. Better safe than sorry. ...Read more

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Allergy shots or antihistamine pills which works better?

Allergy shots or antihistamine pills which works better?

Allergy shots: Antihistamines only cover up symptoms and don't cure anything. Allergy shots treat the cause and that is why with successful immunotherapy you can get rid of antihistames. One complication of nasal allergy treated symptomatically is development of asthma. On the other hand if you treat the cause you prevent complications ...Read more

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How effective are allergy shots, immunotherapy injections or drops?

How effective are allergy shots, immunotherapy injections or drops?

Depends: The efficacy of allergy shots (immunotherapy) can be maximized by seeing a board certified allergist. Allergists receive extensive training in treating with allergy shots. In the right patient, they can be curative, and hopefully decrease or eliminate the need for allergy medications. Allergy drops have also been shown to be very effective, but are not yet fda approved. ...Read more

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Can allergy shots really cause weight gain?

Can allergy shots really cause weight gain?

Never studied: I am not aware of any clinical data on weight gain and immunotherapy. Antihistamines do stimulate appetite so that could be s confounder. Anecdotally I have not seen this phenomenon in my clinical practice. ...Read more

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Is it safe to get allergy shots while pregnant?

Is it safe to get allergy shots while pregnant?

Yes: Allergy shots are safe during pregnancy as long as you are at a maintenance dose or the dosage is held stable until delivery. The concern is about a possible reaction to the allergy injection. ...Read more

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Allergy shots and hearing loss, are they related?

Allergy shots and hearing loss, are they related?

No: Allergy shots are kind of vaccines, and act like them, so far I am not known of allergy shots directly affecting hearing as a side effect ...Read more

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Can seasonal allergies cause asthmatic symptoms? Will allergy shots help?

Can seasonal allergies cause asthmatic symptoms? Will allergy shots help?

Yes to both: Pollens and outdoor molds can cause both nasal symptoms and asthma. Immunotherapy or allergy shots have been demonstrated to help both conditions. Controlling nasal symptoms can help with the asthma. ...Read more

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Do allergy shots work for really bad allergies? My IgE level is about 1300.

Do allergy shots work for really bad allergies? My IgE level is about 1300.

Yes: Allergy injections can be very effective and there effectiveness is not dependent on the ige level. Allergy shots are not a replacement for avoidance measures as possible and many people will still need some medication. ...Read more

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How does desensitization therapy and allergy shots work on people with allergies?

How does desensitization therapy and allergy shots work on people with allergies?

Mechanism: It changes the regulating mechanism of the immune system to lower the specific types of ige antibodies and raising the igg4 antibodies. Allergy patient usually (90%) have too much ige antibodies which combine with the allergic protein and after bridging on a mast cell, a chemical reaction is produced resulting in your symptoms. ...Read more

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Lymph nodes have swollen out of no where after allergy shots. What could be wrong?

Lymph nodes have swollen out of no where after allergy shots. What could be wrong?

Monitoring System: The lymphatic system absorbs and carries things too big to go into the arteries and veins like bacteria eaten by white cells and digested food. The lymph nodes "taste" the lymph to see if anything bad is there like bacteria, viruses, cancers, etc. When it detects a problem, it alerts the immune system and your body reacts. They enlarge in response to the inflammation they create when they react. ...Read more

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Lymph nodes have swollen out of no where after having allergy shots. What should I do?

Lymph nodes have swollen out of no where after having allergy shots. What should I do?

Not related to aller: I would check with you allergist whether this is related to the allergy shots, I doubt it. I have never noted adult patient's develop swelling of lymph nodes from conventional allergy shots. While the shots are designed to stimulate the immune system and lymph nodes do contain the immune cells the reaction generally is not intense enough to cause the nodes to enlarge. ...Read more

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Can you tell me in the usa, which infant and childhood vaccines contain thimerosal (mercury)?

Can you tell me in the usa, which infant and childhood vaccines contain thimerosal (mercury)?

No routine vaccine: None of the licensed pediatric vaccines contain thimerosal except for multidose influenza vaccine - the single dose forms of influenza are thimerosal free. ...Read more

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Are allergy shots administered in the office or in a hospital? Is it safer to have them in the hospital?

Are allergy shots administered in the office or in a hospital? Is it safer to have them in the hospital?

In the office: So long there is a waiting area with staff trained to deal with severe allergic reactions, and under the supervision of a doctor, following the graded schedule recommended, and knowing when to give or not to give the shot, good luck ...Read more

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I gave myself my allergy shots in each arm and forgot to use alcohol swab is that to not use them? It don't hurt really don't need them.

I gave myself my allergy shots in each arm and forgot to use alcohol swab is that to not use them? It don't hurt really don't need them.

Not recommended.: Since allergy shots can cause serious and even life-threatening reactions (since they contain things you are allergic to), it is best to get the shots at a doctor's office. The alcohol is meant to disinfect (not to numb it) the skin surface and you will to wait till it has dried. Again, I would strongly advise giving allergy shots to yourself. Is your allergist board-certified? ...Read more

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I just started allergy shots 2 weeks ago and shortly after that my face started breaking out pretty bad. Can the allergy shots be the reason?

I just started allergy shots 2 weeks ago and shortly after that my face started breaking out pretty bad. Can the allergy shots be the reason?

Not Likely: Allergy shots effect your immune system gradually over time. They do not usually cause breakouts on the face, although they can cause hives or small reactions at the shot sites. ...Read more

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I notice immediate temporary improvement of symptoms after each of my allergy shots. My doctor told me I am very "sensitive".What does that mean?

I notice immediate temporary improvement of symptoms after each of my allergy shots. My doctor told me I am very "sensitive".What does that mean?

Good Discussion: If your doctor tells you something that you don't understand you should always ask questions to clarify. Very sensitive can mean different things to different people and in different circumstances. Some people can't even get allergy shots because they are so sensitive. ...Read more

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They told me first 6 weeks I do allergy shots there then do at home bec I go on vacations anyway. Do they have to be poked In vein or just skin?

Be wary: A 38 yo male starting allergy shots, prescribed first in the office, then at home. Allergy shots are subcutaneous (meaning no vein). But I would be wary of allergy shots at home. Most board certified allergists only give shots in the office because of the small (but real) risk of serious reactions. ...Read more