I was stung by something on the base of my thumb. It caused inflammation and phlebitis which traveled to my brain & chest. I didn't have breathing problems, but pain, numbness, brain fog and a body rash flared up. My Dr suggested not getting stung again!

It took months for the symptoms to subside, especially the pain & numbness. Rash is still blooming...and a lost my mind 18 months ago when I started the SSI application for my son...

I'm not qualified to suggest anything, but I wonder if the location has less blood flow and oxygenation than a hand and will take more time to resolve? Oysgen speeds healing. Ask your DR if something like massage or Therapeutic touch would help, Vit E on the area?

Good luck and hope it resolves soon.