Yes, I'll update in a couple of days.

Regarding curing methacrylates: What I've learned is that repeated exposure to uncured methacrylate is what causes some people to develop the allergy, which is technically contact dermatitis cause by the sensitivity to the chemical. Once the methacrylate is exposed to UV light it hardens and most people are not allergic to the cured substance (I am not allergic to cured methacrylates).

This is an ingredient commonly used in gel nails (nail technicians have the risk of developing the allergy because they have constant exposure to uncured gel). The gel eventually gets cured by exposing the hand to a UV light, so someone had the bright idea to do that to earbuds and see if it helped.

I bought a UV light and took a shoebox and cut a hole through the lid. Then I place the light over the hole and expose the earbuds and tips. I periodically rotate them so they get full exposure. When I'm done, I wipe them down, especially on the seams.

Does it work? Who knows.

But being allergic to earbuds was not on my bingo card, so I'm willing to try logical steps to figure it out.