MPB,
I'm sorry to hear that. I guess your dermatologist has given you the best and most professional answer --'it will probably be fine.' How long do you want to attach for? Did you remove properly and allow the lace release/alcohol to breakdown the adhesive? Walker No Shine is a strong tape and can last for over 2 weeks on most people. If you want to attach for a shorter period of time you might want to try No Residue tape. Like any tape or glue, it's good to try a 'test patch' first.
Regards,
John