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Doctor insights on: Allergic Reaction

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Dr. John Chiu
1,043 Doctors shared insights

Allergic Reaction (Overview)

Sensitivities to substances, called allergens, that come into contact with the skin, nose, eyes, respiratory tract, and gastrointestinal tract. They can be inhaled into the lungs, swallowed, or injected.


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I bought shakeology. I am nervous to try it.75 ingredients, some I've never heard of. Could its ingredients cause allergic reaction.?

I bought shakeology. I am nervous to try it.75 ingredients, some I've never heard of. Could its ingredients cause allergic reaction.?

Yes: Nicole, technically anything you ingest could cause an allergic reaction, although it is fairly unlikely. On the other hand, as a general principle of a healthy diet, if a food continues ingredients you can't even pronounce or have never heard of, you probably shouldn't eat or drink it. Stick to whole, unprocessed foods. Hope this helps! ...Read more

Dr. John Chiu
1,043 Doctors shared insights

Allergic Reaction (Overview)

Sensitivities to substances, called allergens, that come into contact with the skin, nose, eyes, respiratory tract, and gastrointestinal tract. They can be inhaled into the lungs, swallowed, or injected.


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What does "mast cell degranulation" mean in an allergic reaction?

What does "mast cell degranulation" mean in an allergic reaction?

Mast cell: Definition protein involved in mast cell degranulation. Mast cell is a large, ovoid cell of hematopoietic lineage, with a centrally located nucleus and numerous large, intensely basophilic granules. The binding of an antigen to its specific immunoglobulin-e antibody on the mast cell surface triggers the release of the mc granules. Mast cells are involved in hypersensitivity reactions. ...Read more

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What is best to treat allergic reaction lip swelling?

What is best to treat allergic reaction lip swelling?

Lip swelling: It is very important to find out what has caused the lip swelling. If it is an allergic reaction, stop taking whatever caused the reaction, and see your physician or an allergy specialist for an evaluation. Do not try and treat this yourself.
Also see your dentist to see if there is a dental infection. ...Read more

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How can I effectively treat an allergic reaction?

How can I effectively treat an allergic reaction?

Medicines: It depends on the symptoms and the severity of the reaction. Severe reactions require immediate treatment. Mild reactions may respond to over the counter allergy medicines. Avoiding the trigger is also important. See an allergist for continuing or recurrent problems. ...Read more

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If I develop allergic reaction to insect bites, how will it be treated?

If I develop allergic reaction to insect bites, how will it be treated?

Allergy: Lots of different meds can be used. Antihistamines are very common but stopping the medicine (or other thing) that causes the reaction is the first thing to do, if known. Topical and systemic steroids are also commonly used (orally or injected). ...Read more

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What is the worst thing that could happen due to an allergic reaction?

What is the worst thing that could happen due to an allergic reaction?

Anaphylaxis: The most severe reaction that can occur after repeated exposure to something you are allergic to is called anaphylaxis. This rare but sudden condition causes itchy welts (hives), followed by wheezing, shortness of breath, and occasionally, swelling of the tongue or throat. Without treatment, swelling of the tongue or throat can sometimes worsen and block the airway. ...Read more

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What is the treatment for allergic reaction to insect bite?

Depends: The answer depends on the severity of the allergic reaction. If it is mild- just some redness and itching, an antihistamine, such as Benadryl (diphenhydramine) will help. People who get severe reactions- such as difficulty breathing, or swelling of the mouth, tongue, or throat, should carry an epi-pen, which is injectable epinephrine. ...Read more

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What are good treatments for hives like allergic reaction?

What are good treatments for hives like allergic reaction?

Antihistamine: An antihistamine such as Diphenhydramine (benadryl) can help with symptoms. Hives can come and go for several days. I usually recommend using a once daily antihistamine such as claritin, zyrtec, or allegra, and using the Benadryl (diphenhydramine) when the hives break through. I will sometimes add h2 blocker such as zantac or pepcid, which also act as antihistamines. ...Read more

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How to get rid of allergic reaction to condoms?

Hydrocortisone: Topical steroid creams such as Hydrocortisone 1% cream can be tried for at most 1 week to treat minor contact dermatitis to latex from condoms. Non-latex condoms can be used to prevent future reactions. Consult a dermatologist if rash is not improving. ...Read more

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Doctor, my wife has got severe allergic reaction with amoxy-clav tablets. But she is not allergic to pencilin earlier. Can she take again amoxy-clav?

Doctor, my wife has got severe allergic reaction with amoxy-clav tablets. But she is not allergic to pencilin earlier. Can she take again amoxy-clav?

Penicillin Allergy: If she truly had an allergic reaction to the amoxyl-clav then it is highly likely she now has an allergy to penicillin and its related medicines. She should not take amoxyl-clav again. She can go to an allergist and be tested for a penicillin allergy. ...Read more

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Aspirin allergy or triggered allergic reaction due to anything besides Bayer aspirin?

Aspirin allergy or triggered allergic reaction due to anything besides Bayer aspirin?

? Other ingredients: If you're fine with one brand (Bayer) then stay with it if you have to have it regularly for whatever reason, other formulations might have other inactive ingredients that might cause true allergy (rare) or adverse side effects interpreted as allergy to the formulation, if in doubt see an allergist/immunologist, check aaaai. Org or acaai. Org for an allergist in your area ...Read more

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How long does it take peanut dust to settle from the air? We need the dust to fully settle so we can clean the room and prevent an allergic reaction.

How long does it take peanut dust to settle from the air? We need the dust to fully settle so we can clean the room and prevent an allergic reaction.

What dust?: What kind of a room are you talking about. There shouldn't be dust in the air after the surfaces are cleaned, unless you're in a peanut butter factory or something. Use a basic hepafilter vacuum, clean the room surfaces with cleaning wipes, and you should be ok. ...Read more

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How can I avoid another allergic reaction to an antibiotic medicine if allergic to penicillin?

How can I avoid another allergic reaction to an antibiotic medicine if allergic to penicillin?

Avoidance: If one is allergic to penicillin then avoidance of penicillin like medications is a requirement. Other classes of antibiotics should be fine but because an individual has one drug allergy they may be at risk for reactions to other classes of drugs. One should also be very clear that moving forward that antibiotics are needed. ...Read more

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My get skin gets red easily and briefly after scratching. Is this normal? I also had allergic reaction recently from a med, maybe still in system?

My get skin gets red easily and briefly after scratching. Is this normal? I also had allergic reaction recently from a med, maybe still in system?

There is a condition: Called dermatographism, where when you scratch your skin it will cause red inflammed reaction where you scratched the skin. There is no treatment but antihistamines can help. Drug rashes can persist up to one month after you stop taking the medication in most cases, but it doesn't sound like that. ...Read more

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I am having a allergic reaction to something and I don't know what it is, I haven't changed anything in my house either. How do I get it to go away?

I am having a allergic reaction to something and I don't know what it is, I haven't changed anything in my house either. How do I get it to go away?

See your doctor: You did not describe what type of reaction you are having. Many things that "seem" like allergies may not necessarily be allergic. However, since allergies are a very common problem, I would suggest you see your doctor to discuss this. Allergy testing can be done and there are many effective treatments, both over the counter and prescription, that are effective. ...Read more

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My stepfather is deathly allergic to bees and wasps but I've never been stung by either. Are allergies genetic?

My stepfather is deathly allergic to bees and wasps but I've never been stung by either. Are allergies genetic?

Not really: If he were your biological father you might have genetic tendency to have the same allergies as he has, but he is your step father, your half siblings might be allergic to bees/wasps stings, take care. ...Read more

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Is there any risk of allergic reaction with collagen fillers? How do I find out if i’m allergic?

Possible: As a general rule we are at risk for allergic reactions to anything we ingest or inject into our bodies. The question becomes whether one is at higher risk than the general population. Before you inject or ingest anything new speak with your physician to assess the risk. ...Read more

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What is an allergic reaction?

What is an allergic reaction?

An altered reaction: The roots of "allergy" are from greek "allos" (different) and "ergos" (action). So, an allergic reaction is a "different" (from normal) reaction. The reaction occurs to an allergen. An allergen can be a pollen (ragweed), food (peanut), animal (dust mite or bee venom), or other foreign substances. Symptoms occur due to histamine and other chemicals and cause sneezing, runny nose, etc. ...Read more

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What to do if allergic reaction!?

What to do if allergic reaction!?

Allergic Reaction?: Not sure what you mean by allergic reaction. If you are referring to anaphylaxis then epinephrine is the treatment of choice, call 911. Allergic rhinitis is treated with OTC antihistamines, daily intranasal steroid or antihistamine sprays, saline rinses, etc. Allergy shots also an option. Avoidance of triggers is important but see an Allergist first to determine exactly what you are allergic to. ...Read more

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What is causing my allergic reaction?

What is causing my allergic reaction?

Why allergists exist: Finding & treating the cause of allergic reactions is the main function of an allergist. A solid understanding of the immune system is required, so that immunology goes hand in hand. Timing, prevalence of various causes, location, description, examination, associated factors, family history and finally testing enables allergists to identify the culprit, if one is present; treatment is pt-centered. ...Read more

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How can I treat an allergic reaction?

How can I treat an allergic reaction?

Benadryl (diphenhydramine): Immediately stop eating the food you think is causing the problem. Take liquid or dissolving Diphenhydramine (benadryl). If your reaction is worse: cough, shortness of breath, wheezing, chest tightness, difficulty breathing, hives all over your body, swelling of lips and tongue, etc., then you need to use your Epinephrine autoinjector (epipen, twinject) and go to the nearest emergency room. ...Read more

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What to do about an allergic reaction?

What to do about an allergic reaction?

Call your doctor: For mild symptoms I would call your doctor. If there symptoms are severe such as trouble breathing, throat closing, feeling faint you should call 911 and go to the emergency room. ...Read more

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Could I get the same allergic reaction?

Could I get the same allergic reaction?

Yes.: The nature of allergy is that repeat exposure results in repeat, and often more exaggerated, response. There is always the question of whether the initial reaction was true allergy or something else like irritant response or drug side effect. Another important aspect of allergy is "cross-reactivity", which occurs when similarly structured molecules (eg drugs in the same family) are recognized. ...Read more

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What can an allergic reaction feel like?

What can an allergic reaction feel like?

Depends where: In the skin itchy. In the nose itchy, sneezy, runny & stuffy. In the eye itchy and teary. In the lungs coughing, wheezing, weight on chest. In the digestive tract nausea, vomiting, cramps, diarrhea. ...Read more

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What's an allergic reaction? Is mcs real?

Inflammatory rxn: An allergic reaction is the body's defense against an agent it considers harmful or toxic to the body. Most allergic reactions start with food allergies that are undiagnosed and "rev up" the immune system leading to multiple other reactions to environmental items as in mcs. First firgure out what's wrong with the gut and fix it and the immune system will settle down and others will lessen/go away. ...Read more

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How do I figure out my allergic reaction?

How do I figure out my allergic reaction?

Allergic reaction: Allergic reactions can be quite varied. A visit to the allergist can help determine what is triggering your reaction and the best way to manage it. ...Read more

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How can I treat a minor allergic reaction?

What reaction?: You don't tell us what symptoms you had. True allergic reactions usually respond to a few otc tablets of antihistamines. Without more data, I can't b more specific. ...Read more

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