Hello Liz,
How is the healing process going? You are in our prayers.
This may be a little off topic, but several years ago, we lived quite a ways off the grid and there was a certain type of spider that came out in droves during the summer. Many times we were bit at night. The children would wake up with their eyelids swelled shut or just huge swelling at the bite location. One time I woke with a bite on my hand and it swelled so much that I could hardly bend my fingers. Well, we could not travel to town very often, and no one we talked to seemed to know anything. So we began to pray. We are believers in the fact that God has provided everything on the earth that we need, so we knew He had provided a way for us to deal with these spider bites. We started to look at the different herbs and plants that surrounded our little cabin, which was mostly Green Alder. We did a little research and found that the leaves from the male Green Alder bush could be made into a poultice and could be used to reduce swelling. It worked perfectly. We applied the poultice and the swelling left in a matter of hours, sometimes much faster. The pain left with the swelling and movement quickly returned. Of course we also would check the beds for spiders before bedtime too. I know that this is different from your situation, but I just thought I would share this experience.