2 doctors weighed in:

What type of common insect in the u.S. Would give you a bite with the biggest swelling?

2 doctors weighed in
Dr. Robert Greer
Family Medicine
1 doctor agrees

In brief: Brown Recluse Spider

But this answer has a lot to do with where you live.
Spiders are not really insects, but here in the south these are the most common "bite" causing a big reaction.You can have a fatal reaction to any insect sting.

In brief: Brown Recluse Spider

But this answer has a lot to do with where you live.
Spiders are not really insects, but here in the south these are the most common "bite" causing a big reaction.You can have a fatal reaction to any insect sting.
Dr. Robert Greer
Dr. Robert Greer
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