The whitish discharge from the piercing is lymphatic matter and will do not harm it's the normal discharge a piercing will create as it's healing.
in the corner
No, that is not OK. Remove the piercing, try rinsing with a mild disinfectant(like a saline solution), let the infection clear up.
This is normal and just part of the healing phase for your tongue piercing, this will go away in a few days.
Well its not necessarily that they scar, but its almost as if the hole where the piercing was never goes away. Yes the hole closes, but you can still see where the piercing was.
Puts a hole in it.
no, the piercing hole is too small.
All piercing shrink down once the piercing is fully healed and the jewellery is removed, yes the hole is pretty much permanent.
Certainly. With time, the hole created from the piercing will heal over.
There is no resource that can be found to learn how to get rid of the gunk that builds up in a slug hole. One can find information about slugs and their behavior at websites such as Velvet Dragon and Slug Off.
Depends on the piercing some times you can some times you can't.