Wash your hands and your piercing with antibacterial or antimicrobial soap. Use a clean paper towel to dry them.
Unscrew the bead from one end of your surface barbell or Tygon tubing. Gently pull on the other bead to remove the jewelry.
Massage the skin around your piercing for one or two minutes, to make jewelry insertion more comfortable and accessible.
Pinch up the skin in between the two holes, to bring them closer together.
Unscrew one bead from your new jewelry. Guide the Tygon tubing or surface bar into the first hole and push gently until it emerges from the exit hole.
Push against the attached bead to make the tubing or bar stick out as much as possible from the exit hole.
Screw the loose bead into the open end of the tubing or surface bar. If you are using a metal bar, twist both beads in opposite directions to tighten them.