Question 1

is it possible to have a allergic reaction to something five hours later after eating?

Accepted Answer

Yes, but less likely: The rate at which we react to various allergens in in foods can be very rapid, but can be slowed by absorption in the intestines.

Question 2

can you have a allergic reaction to crab 4 hours after eating it ? and would a late reaction be life threatening?

Accepted Answer

Unusual: Allergic reactions to food , except for red meat, usually occurs within 2 hours after ingestion. However I would urge you to see an allergist to get tested before you touch crab again.   Usually the earlier the onset , the more severe the reaction. But delayed anaphylaxis (2-8 hrs later) can also be life-threatening.

Question 3

why would i have an allergic reaction to homemade lobster hours after eating it(approx 5 hours)? this has never happened before.

Accepted Answer

Not un usual: An allergic reaction can sometimes be delayed for 4 to 8 hrs after exposure. Would see an allergist to investigate this further.

Question 4

how long does it take for an allergic reaction like hives to show up after eating something?

Accepted Answer

Not very long: With food allergies hives either alone or as the first symptom of a more serious life-endangering condition called anaphylaxis typically appear within 5 minutes to 2 hours after the first bite. When appearing in a few minutes hives usually appear around the lips, eyes, face & neck. When 1st appearing after 2 hours hives can appear anywhere. Hives may be delayed as long as 8-12 hours after eating.

Question 5

what to do if i have allergic reaction if i do exercise after eating shrimps?

Accepted Answer

Exercise induced: Food associated anaphylaxis is uncommon, but can happen.  Wheat and shrimp are the most common culprits.  Patients can eat the food without exercising, or exercise without eating the food and be fine.  Be very careful to not eat shrimp within 4 hours of exercise and i would suggest not at all on exercise days.  You should also see an allergist and have an Epipen (epinephrine) available.

Question 6

after eating shrimp, my nose itches badly..is this an allergic reaction?

Accepted Answer

Could be: Patients are allergic to shellfish. This could be a manifestation of an allergy.

Question 7

can it be an allergic reaction if throat is tight 15 minutes after eating panicking made it worse but after relaxing tightness went away?

Accepted Answer

Throat tightening: Any throat tightening will make you panic, the question is what came first, the tightening or the panic? Depending on what you ate it may be an allergic reaction. See an allergist to put your mind at ease.

Question 8

hello, my 11 month old has a slight rash around her mouth after eating a tomato and i was wondering if i can give her some childrens benadryl and if so how much?

infant allergic reaction

Accepted Answer

Yes: The dose is a teaspoon of the 12.5 mg/5 ml syrup per 25 lb. given as often as every 4-6 hrs.

Question 9

after eating scrambled eggs for the first time my 9 month old started gagging and got very fussy and congested. could this be an allergic reaction?

Accepted Answer

Yes: I encourage parents to avoid eggs until after a year of age.If your kid has any negative reaction to a new food you should avoid it for at least a month or more depending on the degree of response. Hives or breathing problems should  increase avoidance until you have discussed the issue with your doc, and possibly had allergy tests run. Some food reactions can increase intensity each time.

Question 10

good morning. my 3 year old daughter is complaining about chest pains. she is ohk but about three times she complained about chest pains after eating peanuts. could it be an allergic reaction to the peanuts?

Accepted Answer

Maybe not: This sounds more like indigestion/intolerance than an allergic reaction. The entrance to the stomach is located just behind the heart &amp; acid backwash triggered by any food would trigger such symptoms.

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Doctor answers about:

Is it possible to have a allergic reaction to something five hours later after eating

A member asked:

Is it possible to have a allergic reaction to something five hours later after eating?

A member asked:

Can you have a allergic reaction to crab 4 hours after eating it ? and would a late reaction be life threatening?

A member asked:

Why would i have an allergic reaction to homemade lobster hours after eating it(approx 5 hours)? this has never happened before.

A member asked:

How long does it take for an allergic reaction like hives to show up after eating something?

A member asked:

What to do if i have allergic reaction if i do exercise after eating shrimps?

A member asked:

After eating shrimp, my nose itches badly..is this an allergic reaction?

A member asked:

Can it be an allergic reaction if throat is tight 15 minutes after eating panicking made it worse but after relaxing tightness went away?

A member asked:

Hello, my 11 month old has a slight rash around her mouth after eating a tomato and i was wondering if i can give her some childrens benadryl and if so how much? infant allergic reaction

A member asked:

After eating scrambled eggs for the first time my 9 month old started gagging and got very fussy and congested. could this be an allergic reaction?

A member asked:

Good morning. my 3 year old daughter is complaining about chest pains. she is ohk but about three times she complained about chest pains after eating peanuts. could it be an allergic reaction to the peanuts?

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