6~8 weeks and even longer depending on how the piercing was done. As long as the mater is whitish yellow you are o.k. and that is normal discharge, it will ease up as the piercing heals and becomes seasoned.
As long as you are taking care of it nothing would happen and it should be fine.
It varies from person to person, depending on the size of your nipple.
Provided it was done properly and it is deep enough, it shouldn't reject and should last for as long as you want it.
How long has it been pierced
You can get it done again once you're sure the piercing is healed inside as well as out.
It is best to wait about 6-8 weeks like you would with any other piercing :)
That will some times happen with nipple piercing as they are healing, as long as there is no other irritation from cleaning products or anything else the piercing will soften as the piercing heals. This is a guarding maneuver the tissue does as it heals. Just be sure to rinse the piercings daily under running water. You should have no need to be using any cleaning product or healing agent on your piercing, just diluted antibacterial soap and water should be all you are using. Keep in mind the nipples will also developer in size slightly as the piercings heal, this is also normal.
Yes, as long as the gauge is correct for the tongue piercing - for example : nipple bar is 14 gauge - usual tongue piercing jewellery is 14 gauge and the length of the nipple bar is the correct length for the wearers tongue (this varies from person to person). Basically - if it fits - wear it!
Yes I have had lots of clients who have received nipple piercings and have successfully breast fed there children. As long as the piercings were done correctly and healed without issue breast feeding with the jewellery in or out is not and issue.
It varies person to person. On average, it takes 3-6months for the piercings to heal completely. Everyone is different.
The barbell is too long for the piercing and should have been shortened after two weeks, get a shorter barbell in the piercing and it should settle down.
It's not puss if it's whitish in color, if it's clear then you have an issue, if it's green then you have and infection. If the discharge is clear your saliva duct has been pierced and you need to have the piercing cauterized by a doctor and you will loose the piercing. If the discharge is green and the piercing is red then you have an infection and again need to see the doctor to have it looked at. A whitish yellow discharge is normal lymphatic matter and that will ease as the piercing generates a light heal ( about 2 weeks sometimes longer ) the piercing will not be fully healed for several months and can take up to a year to season.