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Doctor insights on: Arm Swollen And Arm Hot After An Allergy Shot

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Is it normal to have a giant, swollen, red, warm, bump on my arm after allergy shot?

Is it normal to have a giant, swollen, red, warm, bump on my arm after allergy shot?

Not unusual : This can happen. Discuss this with your physician. Local reactions can occur. If bothersome, modifying doses of the injection can help. Sometime taking an antihistamine 2 hours before injections can help. If you have any trouble breathing, feeling lightheaded, you must consult you physician or go to an emergency room as can be a more serious reaction. ...Read more

Dr. John Chiu
2,638 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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Allergy w swollen lips & eyes 2 days ago. Source unsure. Took Benadryl (diphenhydramine) & a steroid shot. Today had rash on arms and torso. What's wrong?

Allergy w swollen lips & eyes 2 days ago. Source unsure. Took Benadryl (diphenhydramine) & a steroid shot. Today had rash on arms and torso. What's wrong?

Urticaria/angioedema: Could be the case, kind of common, mostly no cause can be sorted out, acute types usually follow a viral infection, chronic types mostly have no known cause, could be due to drugs, please keep taking your meds regulary, go to ER if you develop hoarseness / difficulty in breathing, and see an allergist soon, goodluck ...Read more

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Had allergy testing yesteday. Little needles in my arm. Ever since then my arm has ached and feels slightly swollen. Not sure if from tests or shoulde?

Had allergy testing yesteday. Little needles in my arm. Ever since then my arm has ached and feels slightly swollen. Not sure if from tests or shoulde?

Skin Testing: Sometimes arm can be a little sore/swollen after allergy skin testing. Treat with OTC pain relievers and a cold compress. If swelling or pain is severe are acutely worsens call physician who performed test and discuss additional measures. ...Read more

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Lower arm itching and swollen bumps when I wear wool. Allergy?

Lower arm itching and swollen bumps when I wear wool. Allergy?

Allergy: The answer is yes. To be certain, you should be skin tested. You might be surprised to learn that house dust mites may be the culprit instead. ...Read more

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I have a swollen lymph node on my under arm, maybe the size of a small grape. I have bad allergies and started my cycle, will that cause the swelling?

I have a swollen lymph node on my under arm, maybe the size of a small grape. I have bad allergies and started my cycle, will that cause the swelling?

Not likely related: Neither your "allergies" or you menses are likely causes of an auxiliary lymph node. Have your pcp assess as to any further evaluation indicated. ...Read more

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Allergy sometimes swollen lips under feet hands arms neck thighs chest randomly. Taking alerid alleviates for 3-4d. Pls advice.

Allergy sometimes swollen lips under feet hands arms neck thighs chest randomly. Taking alerid alleviates for 3-4d. Pls advice.

Get checked : Swelling under hands and feet is not normal You need to find pour what it is you are allergic to and carry an epipen (epinephrine) in case younger short of breath ...Read more

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Untreated allergies for a year. Could this cause swollen lymph nodes in neck, groin, and armpit?

Untreated allergies for a year. Could this cause swollen lymph nodes in neck, groin, and armpit?

No: Pls visit ur doctor, enlarged lymph nodes in different groups/regions, untreated allergies don't cause such. ...Read more

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When I wake up, I have a body part swollen: hand, wrist, and bum chick, elbow. It looks as if I got stung but the swelling feels like an allergy.

When I wake up, I have a body part swollen: hand, wrist, and bum chick, elbow. It looks as if I got stung but the swelling feels like an allergy.

Consult doctor: The description of swelling of hands,wrist, and bump chick could be due to allergy. As you do not have any other symptoms as breathing problem,kidney problem. But it is better you consult your doctor and get examined,so you can get the right treatment at the earliest. ...Read more

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Is it normal for arms to swell and harden at the injection site after allergy shots?

Is it normal for arms to swell and harden at the injection site after allergy shots?

It's pretty common: It's an immune reaction. Personally, I kind of believe in the 19th century idea that a vaccine that makes more of a 'take' (the signs you mention) produces a better immune reaction.
Vaccines vary between the type (live is stronger) and between people on how much inflammation they produce. ...Read more

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Had flu shot 3 days ago. Spot on arm still painful, swollen, red and hot. Still feeling unwell; fever, bodyaches, weakness and sore throat. Normal?

Had flu shot 3 days ago. Spot on arm still painful, swollen, red and hot. Still feeling unwell; fever, bodyaches, weakness and sore throat. Normal?

Not normal, not rare: These side effects, while not exactly "normal," are also not uncommon. Hopefully they will disappear soon but the flu shot can rarely cause serious long-standing side effects. What is unfortunate is that a large body of research shows that flu shots are not particularly effective! See http://articles.mercola.com/sites/articles/archive/2010/11/01/flu-vaccine-and-its-side-effects.aspx ...Read more

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Why do they alternate allergy shots in each arm?

Why do they alternate allergy shots in each arm?

No particular reason: Some offices alternate arms when only one shot is given each visit. Some switch arms when two or more injections are given per visit. At our office we do not alternate arms or we defer to patient preference. There is no data that I know of suggesting that alternating arms for immunotherapy either improves results or decreases adverse reactions. I'd like to hear our other experts' opinions. ...Read more

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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?

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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Why do I still have itching amd swelling on arm up to 4 days after allergy shot? Is this common?

Why do I still have itching amd swelling on arm up to 4 days after allergy shot?  Is this common?

AIT: This is a local reaction to the injected allergen. You should discuss this with those who are administering your allergen extracts as the dosing schedule may need to be modified. ...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 have bumps on my arms and back, they itch and swell. Is it an allergy or bug bite and how do I treat this?

I have bumps on my arms and back, they itch and swell. Is it an allergy or bug bite and how do I treat this?

Not all bumps equal: It depends on how they look are they raised, flat and red? Or are they like tiny blisters on a red base? The former suggest allergy, the latter bug bites, but the distinction is not absolute. You can try an anti-itch suspension such as sarna with pramoxime topically and take an otc anti-histamine such as Cetirizine 10mg or fexofenadine 180mg. If no better with a reasonable time, see a physician. ...Read more

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Is it safe to administer your allergy shots without rubbing alcohol on arm bec it Don't hurt my arm when give them?

Is it safe to administer your allergy shots without rubbing alcohol on arm bec it Don't hurt my arm when give them?

Used to clean: Alcohol swabs are used to clean your skin before the shot is given to reduce the risk of infection. It has nothing to do with pain control. ...Read more

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Received allergy injection 8 hrs ago in both arms. Right one hurts majorly. Other doesn't. Been getting shots weekly for 13 years no pain after. Help?

Local reactions: Reactions to allergy shots, even local reactions, can occur at anytime even after years of receiving them. Often it is due to technique or how a particular shot was given. Be sure to mention it next time you go for a shot. ...Read more

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Will all allergy shots cause permanent divots on my arms?

No: On rare occasions patients on immunotherapy develops little hard lumps under the skin. These are probably granulomas. I say probably because we don't biopsy them. They resolve spontaneously in a few months and possibly contribute to a better response to allergy shots. I've never seen a divot from an allergy injection. ...Read more

Dr. Jay Park Dr. Park
1 doctor agreed:
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Got a flu shot and now my arm is sore. Is this an allergy?

Dr. Jay Park Dr. Park
1 doctor agreed:
Got a flu shot and now my arm is sore. Is this an allergy?

No: Soreness around the injection site would be a "normal" expected reaction. Ibuprofen, 1-2 doses, 6-8 hours apart should relieve the pain. ...Read more

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X-ray showed swollen sinuses also get lot of sinus headaches.just started allergy shots on my second week will they help?

X-ray showed swollen sinuses also get lot of sinus headaches.just started allergy shots on my second week will they help?

Yes but: If recurrent sinus issues are caused or worsened by allergies, then allergy shots will definitely help. However, it takes a while for them to work. You should continue taking your allergy and sinus medications while on shots. I would give the shots at least a few months to see a difference ...Read more

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24 y/o F Dxd w/ RRMS. Arm in sun skin turned hot, red, & itchy. Same thing on my chin later but a hive was visible. Super sun sensitive? Allergy?

24 y/o F Dxd w/ RRMS.  Arm in sun skin turned hot, red, & itchy. Same thing on my chin later but a hive was visible. Super sun sensitive? Allergy?

Not simple: Typically, there is not a relationship between RRMS and allergy. However, taking immune modulating drugs (e.g. prednisone) could change that (for better or worse). Are you implying you had symptoms only on one side (one arm) while exposure was bilateral? If so, you might be revealing an autonomic inequality, which might relate to your MS. (PS. If image appears with this answer — not mine.) ...Read more

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Shoulder to upper arm feels like itching, burning and its in pain when moving. Possible the allergy shots cause this? Is it muscle torn?

Local redness: If you received an allergy shot in your arm and now it bothers you than it is possible you are aware of it. Most common side effects of allergy shot would be redness or soreness. If you feel excessive redness or pain with passive motion call your doctor or have it examined soon. ...Read more

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The left half of my left eye gets blood shot red and swollen. My actual eye ball gets bulgy. I don't have allergies. I get this twice a month at least?

The left half of my left eye gets blood shot red and swollen. My actual eye ball gets bulgy. I don't have allergies. I get this twice a month at least?

See a Dr: There are different types of bleeding in the eyes, most are benign or self limited but some in the sclera may be iritis/uveitis or in the anterior chamber or in the retina. ...Read more

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My barium swallow came out good just swollen sinuses I get lot of sinus headaches for years.i starting allergy shots next week.will they help?

My barium swallow came out good just swollen sinuses I get lot of sinus headaches for years.i starting allergy shots next week.will they help?

Can't see a connection: Between your barium swallow and your sinuses! Allergy shots do help most of the time if prescribed and given by an expert, it will take time though to feel a difference, other prescribed meds should administered too till the effect of allergy shots start, can take up to a year to feel a difference, if not improved, you don't continue, mind you there is around 10-20 % failure rate, good luck ...Read more