Suspended for a nose piercing?

Ariana Lacono was suspended for a nose piercing which i find unjust. Suspension is not the right move to make since it leads to student missing days of school. Being absent in school pulls you back from learning and adds more work to your school life which i know no student wants. The School went overboard with its days of suspension just for a piercing. I would understand if it was a fight or anything to do with harming another student but a nose piercing does none of those so it shouldn't have a consequence near suspension. Her school should respect her ways of expressing her religion since it does not involve harm to anyone and since its on the first amendment which states the freedom of religion.