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A 43-year-old female asked:

What is a bug bite that has swelling, warm, large red rash around it the size of a baseball & itchy?

2 doctor answers2 doctors weighed in
Dr. David Schneider
Dentistry 38 years experience
It can be: It can be any of a number of insects - what you are describing could be a spider bite or a wasp bite/bee sting or even a tick - it is quite possible you are having an allergic reaction or a cellulitis. See a dermatologist.
Dr. James Ferguson
Pediatrics 46 years experience
Hard to say: About the only way you know for sure what bug has bit you is to catch it in the act. The body responds to bites in a similar fashion that is specific to the person & their sensitivity to the bug. Some react minimally, some with advanced swelling, some go to the ER with a major event. What you describe is an arthus reaction which is common to many types of bites.

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Last updated Oct 10, 2020

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