I Was Biten By A Spider Yesterday. It Bruised And

i was biten by a spider yesterday. It bruised and was itchy immediately. It doesn't hurt, just swollen. Not realizing it was a spider bite until I changed and showered...thought it was very strange that I was so bruised and how swollen the area was. I took allergy medicine and put poison ivy antiseptic on the area (good for bites as well). Should I see a doctor tomorrow?