Hi
Welcome to the MedHelp forum!
If your daughter has allergic sinusitis, then nose piercing will not harm her. As long as she keeps her nose-ring clean and the area clean while blowing the nose, she will be fine. However if she is allergic to the material of the nose-ring then this may create problems. Also blowing the nose with a ring inside is always more messy and painful. You can consult her ENT specialist regarding this.
Hope this helps. Please let me know if there is any thing else and do keep me posted. Take care!
13 is way to young to get a nose piercing! Especially if she has sinus problems. At least wait until she's 16.
You may want to correct your profile, which lists you as a 20 year old male.
I think your daughter would be putting herself at risk for irritation & infection. Your daughter sure could use a dose of common sense guidance from you on what fads are unhealthy choices. Does she have pierced ears? At least those pierce sites, though they can get infected too, are not going into a place where it would in your nose- your nose is a first line of defense against inhaled germs & dirt as well as warming the air you breathe in. I believe putting a hole in there is asking for trouble.