There is a spider bite on my elbow and now it is swollen. There is no pain or itching.
That doesn't look like a spider bite. It looks like epicondylar bursitis (fluid accumulation around the elbow joint). See your doctor. It may need to be drained.
William Z. Cohen, M.D., FAAFP
I'm not so sure that's a spider bite. You should have that checked out in person.
Dr. K