It sounds like it could very well have been a recluse that bit you, thank God you had and used the Bentonite! Mine wasn't as bad as that, I only had to treat mine overnight for it to go away. I found another big bite last night before I went to bed so I did the same thing and it was gone this morning.
I'm in total agreement with you about making sure we have Bentonite Clay in our arsenal this summer because the buggies DO seem to be a lot worse. Where I live we usually have bats that fly all night catching all the flying bugs but I've only seen the one bat this year, we usually have many. I'm wondering if our bats got that whitenose disease that's been all over the news. They've shut down the bat caves all over the place to keep humans away from the bats. Never thought I'd say I miss my bats but there you have it lol. They do a world of good keeping the bugs away, I hope they come back soon. ;)