or just melt a hole in the nail with a red hot needle......next time you smash a finger like that get a pair of cotton gloves. cut the large finger off the glove. gently slide the glove finger over your finger. go to the kitchen cupboard and get the table salt. fill the glove finger full of salt and tape it so it seals the salt in. leave over night and you will be amazed the amount of swelling it will pull out.