Approximately eight hours after being bitten, I learned it was a brown recluse bite. I started using Cayenne Pepper poultices and had an immediate reduction in pain, and redness and swelling. I have been replacing the poultice 2x a day for about 3 weeks. It looks almost fully healed.
I've now started applying poultice once a day and adding lavender oil to help heal the area and the reaction my skin has had to the bandaids I've used to keep the poultice in place.