Just in case this is useful...
My rescue pug is scared of practically everything. He has two nails which grow and curl into the pad if they aren't clipped four times a year.
Last time I took him to have his nails clipped, the vets said he was too distressed and he needed to have it done under sedation, at a cost of £200. So £800 per year, plus four sedations which is risky, especially for a flat faced dog.
I found a dog groomers who put him up into a cradle and did the fasted nail clip ever. For a fiver!!!
Anyway, I am beaming from ear to ear and my lovely pug has been richly rewarded with fish biscuit treats 