Torn Nail (from catching it on something) :

• For a cracked nail without rough edges, leave it alone.
• For a large flap of nail that is almost torn through, use a sterile scissors to cut it off along the line of the tear (Reason: pieces of nail will catch on objects and tear further).
• Apply an antibiotic ointment and cover with a Band-Aid. Change daily.
• After about 7 days, the nail bed should be covered by new skin and no longer hurt. It takes about 6-12 weeks for a toenail to grow back completely.