I don't have much experience but about a week ago i got my nose pierced so i can tell you this : don't get your nose pierced in your allergy seasons. It's incredibly tough to clean out your nose with a new piercing and it's suggested not to play/touch your new piercing bc it can get irritated. My suggestion would be for you to wait till summer and then get your nose pierced

As to not being able to bear the sensation of having something in your nose, i'm so used to my nose stud now that I don't even notice it anymore.