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Doctor insights on: Severe Allergic Reaction In Children

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How can I handle a severe unknown allergic reaction?

How can I handle a severe unknown allergic reaction?

See an allergist: An allergist is specialty trained and uniquely qualified to assess and treat severe allergic reactions. Even if the cause is not currently known, an allergist can assist in finding the cause and preventing another reaction. ...Read more

Dr. John Chiu
2,656 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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Can a severe allergic reaction cause urine to get cloudy for a bit

Can a severe allergic reaction cause urine to get cloudy for a bit

Possible: Also, quality of diet e.g. Diet rich in phosphate like dairy products may at times do that with fluctuations of urine ph. Prompt clearing is reassuring. However, persisten cloudy urine may suggest a problem like infection. ...Read more

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How often does a severe allergic reaction occur? What percent of people have anaphlaxis?

How often does a severe allergic reaction occur? What percent of people have anaphlaxis?

1.5 to 15%: Depends on what you read and the type of agent causing anaphylaxis, the reported incidences ranged from 1.5% to 15% although i think the incidence is under 0.1% annually. The severity was not detailed in the reports but a survey done about 10 years ago noted that there were 1500 deaths/yr from anaphylaxis in the us- some cases of unexplained deaths might not be included. ...Read more

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How long does it take to recover from a severe allergic reaction to antibiotics?

How long does it take to recover from a severe allergic reaction to antibiotics?

Depends: on the reaction, which can range from some rash to full anaphylactic shock to other complications, first step is to stop the medicine, at times it might take weeks for the rash to go away with certain antibiotics, just keep away from direct sunlight as much as you can while you have the rash, follow up with your pcp/allergist, goodluck ...Read more

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What is safest type of hair color for someone in early fifties? Some brands can result in severe allergic reaction.

What is safest type of hair color for someone in early fifties?  Some brands can result in severe allergic reaction.

Everyone's Unique: Everyone 's immune system responds differently to proteins that are not our own. Some people develop allergies after one exposure, while others it may take 30 years. Some people NEVER develop allergies to certain chemicals. Unless you're set on coloring your hair, the safest product is no hair color at all. ...Read more

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If I had a severe allergic reaction to fluticasone proprionate, am I likely to react negatively to fluticasone furoate as well?

If I had a severe allergic reaction to fluticasone proprionate, am I likely to react negatively to fluticasone furoate as well?

Better avoid: The whole class , likely the allergy was to the main nucleus, which is similar in both preparations. Confer with your doctor about use of alternate treatment, best wishes ...Read more

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I had a severe allergic reaction to keflex. Can i trust taking other antiobios in the future without being pre-tested? How to know if allergic again?

I had a severe allergic reaction to keflex. Can i trust taking other antiobios in the future without being pre-tested? How to know if allergic again?

Many options: Antibiotics are in a number of chemical classes. With a severe reaction to Keflex (also called cefazolin), you should avoid antibiotics in the cephalosporin and probably the penicillin class, as there is a higher chance of cross reactivity. Typically, we will give antibiotics in a different chemical class rather than testing. For you, examples may be clindamycin, Ciprofloxacin or vancomycin. ...Read more

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I couldn't get my second MMR shot due to a severe allergic reaction to it. What ingredient would cause this? Not allergic to any others. Will I be ok?

I couldn't get my second MMR shot due to a severe allergic reaction to it. What ingredient would cause this? Not allergic to any others. Will I be ok?

?Neomycin, hopefully: Like all vaccines, the MMR vaccine has many ingredients one could react to, but the most likely is neomycin, which is known to cause severe allergic reactions. See list of the ingredients in my comment. Also see http://bit.ly/16RdeGh for a general discussion about vaccine safety and hazards. Hard to know if you'll be OK without more details of your reaction, but it's OK to not get more MMR. ...Read more

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How do I know if I have tropical tea bags which contain passion fruit, could I have a severe allergic reaction to these tea bags if i consume the tea?

How do I know if I have tropical tea bags which contain passion fruit, could I have a severe allergic reaction to these tea bags if i consume the tea?

Read labels: For any food allergy, it is imperative to read ingredient labels to identify if the specific food allergen is present. The U.S. Food labeling law does not require passion fruit to be included, but check anyway. Typically there is a contact number at the company to call. If a person is not sure, they should avoid that particular product. An allergic reaction could occur if highly allergic. ...Read more

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Is it unusual to have severe allergic reaction to the MRI dye?

Is it unusual to have severe allergic reaction to the MRI dye?

Very rare: Mri "dye" is gadolinium, a rare element that has rare side effects. Allergic reactions are very unusual and vary in frequency from 0.004% to 0.7%. A rash, hives, or urticaria are the most frequent. Severe, life-threatening anaphylactoid or nonallergic anaphylactic reactions are exceedingly rare (0.001% to 0.01%). ...Read more

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How long would I have effects from a severe allergic reaction to macrobid?

How long would I have effects from a severe allergic reaction to macrobid?

Depends: It depends on what kind of reactions you experienced from the macrobid. If hives or rash, i would expect it to go away in days. We need more details on the timing and the type of reactions. ...Read more

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Need advice on what is the the emergency room treatment for a severe allergic reaction?

Need advice on what is the the emergency room treatment for a severe allergic reaction?

Several: Treatment for a severe allergic reaction (anaphylaxis) is Epinephrine injection, oxygen (if low pulse ox), intravenous fluids (for treating low blood pressure), antihistamines (h1 and h2) by injection or orally, albuterol by nebulizer (if asthma like symptoms), steroids (prednisone by mouth or solumedrol (methylprednisolone) iv), blood pressure support medications and rarely Methylene Blue (for refractory symptoms). ...Read more

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If you have a severe allergic reaction to contrast can you still have a pet scan? And also if you have diabetes can you have this test?

If you have a severe allergic reaction to contrast can you still have a pet scan? And also if you have diabetes  can you have this test?

Yes; different chem: Typically pet scan uses a small amount of radioactive material which tends to accumulate in higher amount in more active tissues such as tumor or site of infection, thus better seen on scan. Ct contrast uses a radioopaque substance that is different than one for pet, thus you should be fine. Make sure your diabetes/sugar is under good control. Consult doc and best of luck to you. ...Read more

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I was prescribed prednisone for severe allergic reaction, should I take it till the rash is gone or till the prescription is gone?

Prednisone: Follow the prescription exactly as written since you can have a recurrence or a flare if the Prednisone is stopped before the recommended treatment or tapering course. ...Read more

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I'm allergic to bactrim (sulfamethoxazole and trimethoprim) n just got prescribed sulfamethoxazole but I have severe shoulder pain and headache, it's an allergic reaction isn't it!

I'm allergic to bactrim (sulfamethoxazole and trimethoprim) n just got prescribed sulfamethoxazole but I have severe shoulder pain and headache, it's an allergic reaction isn't it!

UR allergic to sulfa: Bactrim (sulfamethoxazole and trimethoprim) contains sulfmethoxazole & trimethoprim. Most people allergic to Bactrim (sulfamethoxazole and trimethoprim) are allergic to the sulfa component. So your symptoms are probably related to sulfa. Your dr should prescribe another antibiotic, if you still need one. Suggest you make both your dr & your pharmacy aware of this. ...Read more

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Are my baby's sudden severe breathing problems an allergic reaction?

Are my baby's sudden severe breathing problems an allergic reaction?

Probably not...: If they are chronic and recurring. However, if sudden onset respiratory symptoms occur immediately after a new food has been introduced (such as egg or peanut), it could indicate food allergy (in which case there is usually an accompanying rash). I said "probably not, " because environmental allergy is rare in children under 2 since recurrent exposure over time is necessary to develop allergy. ...Read more

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I get severe headache when I smell red onions. Is this an allergic reaction?

I get severe headache when I smell red onions. Is this an allergic reaction?

No: This is an irritant reaction but does not represent an actual food allergy. Food allergy reactions are more likely to present with a combination of the following: rash or hives (the most common symptoms), swelling of lips, tongue, or throat, respiratory symptoms, vomiting, or diarrhea. ...Read more

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What are the chances of having a severe allergic reaction to the cat scan dye they use? 

What are the chances of having a severe allergic reaction to the cat scan dye they use? 

Low: Severe reactions to ct scan dyes are low unless you have a history of a reaction, are on certain medications that work through your kidneys or you are very dehydrated. It is always good to questions why you need the ct scan in the first place as it also exposes you to more radiation. Will the results of the scan change how you are treated?.. And that can outweigh the small risks of the procedure. ...Read more

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Is it safe to take children's benedryl and Claritin (loratadine) together for an allergic reaction?

Is it safe to take children's benedryl and Claritin (loratadine) together for an allergic reaction?

Yes.: Sometimes you need a little more medication. I usually have my patients stick with the same antihistamine rather than take two different ones. I also prefer fexofenadine (allegra) & loratidine (claritin) to the others because they don't cause sedation or slow reaction time & because they last for 12-24 hours. Also i always recommend the generics over brand name. ...Read more

Dr. John Chiu
1,052 doctors shared insights

Allergic Reaction (Definition)

A sensitivity to substances called allergens that come into contact with the skin, nose, eyes, respiratory tract, or gastrointestinal tract. They can be breathed into the ...Read more