I know that allergic reactions like this are possible because I’ve had one. I took a medication and was fine for the first five days. Then, on day six, I started breaking out in hives.
How does this happen? I have a hard time understanding how the body can have an allergic reaction at a point when the allergen probably isn’t even in the body anymore.
In: Biology
When you’re allergic to something, your immune system is basically saying “this shouldn’t be here, we need to get rid of it”, and unrightfully attacks it.
In terms of medication, it can take a while for the med to become concentrated enough in your blood for your body to realize it doesn’t like it and have a reaction.
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