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Doctor insights on: How Long Effects Last After Allergy Shots

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What are the long term effects from allergy shots?

What are the long term effects from allergy shots?

Yes: About 2/3 of people who do immunotherapy of an appropriate, effective dose will have long term relief from their allergy symptoms even after they have finished 3-5 years of the shots.

In some cases this relief is permanent, in others symptoms will eventually return, but may be years later. ...Read more

Dr. John Chiu
2,628 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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How long and how often should I receive allergy shots?

How long and how often should I receive allergy shots?

1-6 months: Allergy shots help animal and pollen allergy sufferers the most to reduce their misery. Once a maintenance dose is reach (a process that can taken 1-6 months), injections are spaced out to a 2-4 week interval as part of a maintenance plan. Injections that do not seem to be effective after a year may be discontinued. Injections may be continued for 3-5 years or longer if they are effective. ...Read more

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How long after starting them can I stop getting allergy shots?

How long after starting them can I stop getting allergy shots?

Are they working?: You should see improvement with allergy injections a few months after reaching your maximal tolerated dose. If you're not better review the program with your allergist. Perhaps you should stop? After 4-5 years of successful once-monthly immunotherapy patients may try to stop. About half return in 6-8 weeks wishing to resume. 25% need to restart after 5-7 years. 25% never need another injection. ...Read more

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How long does it take before you see relief with allergy shots?

How long does it take before you see relief with allergy shots?

Months: The reason that allergy shot regimens take years to complete is because they have to go up on the dosage of allergen very slowly. The results are usually very good but it takes months for you to notice a significant difference. Continue taking your oral allergy medications as long as the allergist recommends it. ...Read more

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If I start allergy shots how long does it usually take before allergy symptoms significantly lessen?

If I start allergy shots how long does it usually take before allergy symptoms significantly lessen?

Allergy shots: Depending on the protocol that you and your doctor are following it takes on average 3 to 4 months, but you should ask your doctor this question, they know the particulars of your treatment. ...Read more

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If I tough out my allergies to my dog for long enough will my body eventually get used to it (like with allergy shots)?

If I tough out my allergies to my dog for long enough will my body eventually get used to it (like with allergy shots)?

Allergy shots: Do help. But., first get evaluated and discuss this with your allergist to find out if you are truly allergic to dogs. You could have other issues and be sensitive to other stuff, too. ...Read more

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How long will it take atopic dermatitis to get better when taking allergy shots?

How long will it take atopic dermatitis to get better when taking allergy shots?

Variable: Atopic dermatitis, eczema, may or may not be of allergic origin. If it due to allergies allergy shots may help. You should see an improvement within six months to two years. ...Read more

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My 6 yr old son has IgE level of 3090 but has only shown a mild case of hives 4 times in the last 4 yrs. Is allergy shots only solution?

My 6 yr old son has IgE level of 3090 but has only shown a mild case of hives 4 times in the last 4 yrs. Is allergy shots only solution?

Depends on trigger: If the episodes of hives were caused by an allergen found on allergy testing (cat, for example), then allergy shots will reduce his sensitivity to that allergen. If the cause is not known, then most allergists recommend a daily antihistamine like Cetirizine to prevent future episodes. ...Read more

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If it takes long time for atopic dermatitis to heal from allergy shots, which other method is proven to work? Acupuncture? Herbal tonic? Any other?

Moisture/antinflam: Atopic dermatitis is managed by reducing the tendency to scratch, which causes a flare, so reduce all forms of rubbing; cetaphil/ probiotics. If worse, consider low potency, short course (< 2 weeks/episode) topical steroids, Elidel (pimecrolimus) or Protopic for < 2 weeks/episode; atarax/ Benadryl q.I.D., p.O. Helps interrupt the scratch/itch cycle. Can try 2 tbs bleach in 1/2 tub--5 min guided soaking the body. ...Read more

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Chronic allergies & sinusitis. No meds help. Last sinus cat scan clear. Had allergy tests, the allergist recommends allergy shots. This would be my 3rd time, first two ineffective. Should i?

Chronic allergies & sinusitis. No meds help. Last sinus cat scan clear. Had allergy tests, the allergist recommends allergy shots. This would be my 3rd time, first two ineffective. Should i?

Another option: If you haven't tried an inhaled nasal steroid (eg, nasonex), it might prove effective in controlling your symptoms. In addition, there are multiple medications which counter allergic symptoms. Make sure your doctor has tried each one for your symptoms. Allergy shots (desensitization therapy) might help. ...Read more

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How long is it safe to take Claritin D? D seems to be the only thing help chronic post nasal drip and fluid in ears. On allergy shots but slow progress.

How long is it safe to take Claritin D? D seems to be the only thing help chronic post nasal drip and fluid in ears. On allergy shots but slow progress.

BP Concerns: The decongestant in Claritin (loratadine) D can be helpful for acute facial pain/pressure and congestion but has side effects which can be significant. If you have a history of blood pressure issues or other cardiac problems I would not recommend. Consider talking with Allergist about other possible treatment due to refractory disease. Drying agents like ipratroprium bromide sprays and methscapolomine can help ...Read more

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I went to the EL Last night for a severe reaction to allergy shots. They gave me a shot of prednisone 125mg. Today I took one 10mg prednisone now I am having chills, feel feverish and scratchy throat and headache and fast heart rate. I do not want to take

I went to the EL Last night for a severe reaction to allergy shots. They gave me a shot of prednisone 125mg. Today I took one 10mg prednisone now I am having chills, feel feverish and scratchy throat and headache and fast heart rate. I do not want to take

Pls call or see your: Doctor, you need another evaluation, a biphasic reaction is possible, meaning that you can have the same symptoms again, but with a lesser degree, within 24 hours of the first reaction, or it might be something else, hence a doctor's evaluation is important, good luck ...Read more

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Sore throat, malaise, fatigue/last 5 days/every 3 weeks/no tonsils/neg strep/ENT says inflammation/take Prilosec/allergy shots/nasal sprays/no help?

Sore throat, malaise, fatigue/last 5 days/every 3 weeks/no tonsils/neg strep/ENT says inflammation/take Prilosec/allergy shots/nasal sprays/no help?

?: chronic sinusitis with frequent flares of acute sinusitis, possible, more information is needed to reach a more accurate diagnosis, ask your allergist /immunologist for a evaluation, also what are the ingredients of the allergy shots you're on, and what phase/schedule, your allergist/immunologist would be able to address your problems better, check aaaai. Org or acaai. Org for an allergist in your area ...Read more

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What are side effects of allergy shots? I recently started them for dust, cats, dogs, and grass

What are side effects of allergy shots? I recently started them for dust, cats, dogs, and grass

Several: Local lumps at the injection sites are not uncommon. Rarely you may even have anaphylaxis (a life-threatening situation which may manifest as breathing trouble, fainting, shock, itching, hives, vomiting etc) and thus you must stay at the office for 30 minutes after each session so that prompt treatment can be started when and if this does occur. ...Read more

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Do allergy shots hurt?

Do allergy shots hurt?

Not bad: My daughter got them when she was 2 years old - at first she cried but then we played a "who can be the most brave game" and all the tears were gone. ...Read more

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Do I need allergy shots?

Do I need allergy shots?

Do you have: Specific diagnosed allergies? If so - what did the allergist recommend? ...Read more

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Will allergy shots work?

Will allergy shots work?

Yes: Allergen immunotherapy (allergy shots) is effective for most people and is the only "disease modifying" treatment available. In general about 30% of patients have great response, 30% have good response, 30% have a fair response and unfortunately 10% don't respond. There is no way to predict how good the response will be. It's excellent and safe therapy in the right hands (an allergist). ...Read more