This product was mentioned in 2 comments, with an average of 1.00 upvotes
Get some athletic tape like this Jaybird stuff, get the 1.5" wide stuff. Wrap it around your thumbs a couple times and hookgrip the shit out of it. It'll help take the sting out.
https://www.amazon.co.uk/gp/product/B00M2EQU4W/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
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This stuff is really good as it's stretchy so you can tape of the joint without losing the movement.