Yes
5 years or so.
Salt water or saline solution on the outside of the lip around the piercing. Alcohol-free mouthwash on the inside of the mouth around the piercing
Put water on it.
Only if she is infected with HIV. If it is just a busted lip then no, you cannot.
The best way to heal a bite on the outer lip is to apply a topical antibiotic ointment or analgesic. Take care not to allow any of these to actually enter the mouth as they are not intended for internal use.
Basketball
BustedLipGear.com
If you rinse your mouth and keep it clean, usually within about 3-5 days
Oragel or some type of Vaseline works best.
It is not recommended to put salt on a busted lip as it can cause a stinging sensation and may exacerbate the pain. It is best to clean the area gently with a mild soap and water, and apply a soothing lip balm or an over-the-counter topical cream recommended for minor skin injuries.
it takes up to a few weeks to heal. it depends on the gauge size of the ring. but, i wouldn't change it until three weeks after having it pierced.