Don't:
Pick at or touch the piercing. This can irritate it and lead to infection.
Use alcohol or hydrogen peroxide to clean the piercing. This can dry out your skin and break down new tissue.
Use public pools or hot tubs while the piercing is healing.
Use antibiotic ointments on the piercing.
Wear makeup during the healing process (for ear or facial piercings).
Wear tight clothes (for body piercings).