Most of the time its just clear plastic jewelery.
Bio Plast and PTFE retainers are available for your piercing, you need to talk to your local professional body piercer who can order in a retainer for your piercing.
u could tuck your lip in your mouth
Piercing retainers are clear bioplastic retainers ment to be used when jewellery cant be worn (like at work or in school) and sit in the piercing to retain the piercing while the jewellery is out.
Go to a different school. Or you get a lip retainer from your local professional body piercing studio.
depends on what your facial structure looks like
Get a retainer. You can use acrylic but I think glass works best. It wont completely hide it but its better than nothing. You can find them online but look around at your local piercing shops first :)
No, the hole will grow in in a matter of hours. You can order a hider to make it look like you don't have a piercing in your lip.
Red swollen hot may or may not have blisters
Yes, a left lip piercing would look good with a Medusa. I have my Medusa, Snakebites, Septum, Right Nostril, etc... If anything, get more! :-)
No, but you can buy a retainer which will make it less noticeable.
If it is absolutely necessary go to your piercer and ask about a glass retainer. You really shouldn't change it and it will still be visible with a glass retainer. The swelling may be obvious too.
You don't. The only real thing that you can do to "hide" it would be to wear a clear retainer, but this will be an obvious rod of clear plastic through your lip. The only other alternative would be to leave it out, and with it new, the piercing will shrink up super quick.