This is a complete myth. It arose from 2 cases 40 years ago where the re was finger necrosis but it's now thought that the substance used was contaminated anyway. Since then there have been multiple publications of series of >1000 patients with adrenaline in the fingers with no adverse events and the whole WALANT principle is based on filling the finger with lidocaine with adrenaline walant.surgery/walant-university/

0.5% with adrenaline. Also consider WALANT type infiltration with 1% lidocaine with adrenaline mixed 10:1 with sodium bicarbonate as this is less painful but needs multiple injections with a volume that produces swelling so choose which to use depending on the clinical scenario