Septum Piercing

R • A something year old college student, working, single, and bisexual. ♻️🏳️‍🌈💞
I used to think they were gross I roll my best friend got one. I have a fake one right now I use everyday, and I am seriously considering getting one soon. I have concerns though. 
1. Are septum piercings cultural appropriation?
2. I have allergies year round. Will it be painful to keep the piercing? 
3. If you have had a septum piercing, any thing I should know?