Can an anaphylactic reaction occur hours/days after exposure or does it happen right after?
How long does it take? Also how big is a possibility of a person with generally no allergies to get one?
- formerly_bobLv 73 weeks ago
Its nearly always a very rapid reaction; however, there is uncommon type of reaction called a delayed hypersensitivity reaction that can occur days later with progressively worsening symptoms that can lead to analphylaxis.
If a person has no allergies, the odds of anaphylaxis are zero since its only caused by an allergic reaction.
- ByrdLv 73 weeks ago
Anaphylaxis happens in 20 minutes if you are at minute 21 it isn't going to happen