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Doctor insights on: Anaphylaxis Due To Severe Allergic Reaction

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Afraid to go to sleep after severe allergic reaction (anaphylaxis) earlier today. What should I do?

Afraid to go to sleep after severe allergic reaction (anaphylaxis) earlier today. What should I do?

Fear of anaphylaxis: Severe anaphylaxis can be very frightening. People often describe a sense of impending doom or thinking that they are going to die during the event. You also may be having side effects from steroids or Epinephrine used to treat the reaction that can cause anxiety, mood disturbance and insomnia. Make sure you see an allergist to sort out your fears. Proper preparation will help. ...Read more

Dr. John Chiu
2,390 doctors shared insights

Allergies (Definition)

Essentially allergies occur when your immune system goes crazy and decides to has to fight against things it should be ignoring. The immune system of people without allergies simply ignores the pollen in the air or the dander on their cat while an allergic person's immune system creates cells to fight against the pollen or dander. The allergic reaction causes the ...Read more


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Can anaphylaxis occur after 4 doses of amoxicillin rather than just 1 dose? Can I develop a severe allergic reaction after 4 doses? Is that common?

Can anaphylaxis occur after 4 doses of amoxicillin rather than just 1 dose? Can I develop a severe allergic reaction after 4 doses? Is that common?

Not common: But can happen, usually if it is the first time on the drug, takes time to be sensitized, drug allergy is a complex and tricky subject. Trust you stopped the amoxicillin and all other suspected offending drugs you are on, called your docto/ER for treatment, and for an alternative antibiotic if you still need one. Ask your your doctor for an epinephrine Rx to keep handy 4 accidental exposure later ...Read more

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How come I have a severe allergic reaction such as anaphylaxis to vitamin pills but not to vitamins through IV fluids?

How come I have a severe allergic reaction such as anaphylaxis to vitamin pills but not to vitamins through IV fluids?

Aint' easy sometimes: Be skeptical of reactions to vitamins. It's really rare. Get a wise allergist who you trust to really go through your story. Look at it with open eyes. Sometimes causes are not always easily identified (idiopathic). There are a few tests that are helpful, though. ...Read more

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If one has had a severe allergic reaction (anaphylaxis) to lisinipril, what can be used in its place for congestive heart failure?

If one has had a severe allergic reaction (anaphylaxis) to lisinipril, what can be used in its place for congestive heart failure?

ARB: Are you sure this is an anaphylactic ( allergic) reaction or "angioedema"? Lisinopril ( and all ace inhibitors) can cause angioedema in a small number of patients. If this is Lisinopril induced angioedema, an angiotensin receptor blocker (arb) may be used which has equivalent benefits for heart failure. These are medications such as losartan, valsartan. ...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 quickly does anaphylaxis happen? I ate something 6 hours ago, and I am starting to feel like I am having an allergic reaction.

How quickly does anaphylaxis happen? I ate something 6 hours ago, and I am starting to feel like I am having an allergic reaction.

Usually minutes: Rarely few hours, so unlikely that what you are experiencing is related to what you ate, at any rate it wise to keep an antihistaminic handy, and probably epinephrine pen in case you are prone to anaphylaxis, and see an allergist if really suffer, good luck ...Read more

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What is a result of anaphylaxis(a systemic allergic reaction)?

Many causes: Severe allergic reactions (anaphylaxis) can be from stinging insects, foods, medications, latex, allergy shots, exercise, and idiopathic (about 1/3 of reactions, there is no cause found). These reactions can resolve with treatment, but some go on to be fatal especially if there is a delay in giving Epinephrine or the person has asthma. ...Read more

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At what dose would an allergic reaction or anaphylaxis happen? I took 2 doses so far of amoxicillin and I've been okay. Likely to have a reaction?

Anaphylaxis would: occur rapidly (within minutes) regardless of dose. Delayed allergic reactions like rash or hives can take a day or more to develop. You are most likely OK at this point. ...Read more

Dr. Suzanne Galli
1 doctor shared a insight

Anaphylaxis (Definition)

Anaphylaxis is a severe, whole-body allergic reaction to a chemical that has become an allergen. After being exposed to a substance such as bee sting venom, the person's immune system becomes sensitized to it. When the person is exposed to that allergen again, an allergic reaction may occur. Anaphylaxis happens quickly after the exposure, is severe, and ...Read more


Dr. John Chiu
977 doctors shared insights

Allergic Reaction (Definition)

Allergic reactions are 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 ...Read more